document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=389359>Question 389359</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a:b :: c:d, show that:<BR>\n" );
document.write( "ac : bd = (a^2+c^2):(b^2+d^2) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #275903 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=275903\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28ac%29%2F%28bd%29+=+%28a%2Fb%29%28c%2Fd%29+=+%28a%2Fb%29%28a%2Fb%29+=+a%5E2%2Fb%5E2+=+%28a%5E2+%2B+c%5E2%29%2F%28b%5E2+%2B+d%5E2%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >.  The last equality in the chain is true because it was shown before that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2%2Fb%5E2+=+c%5E2%2Fd%5E2+=+%28a%5E2+%2B+c%5E2%29%2F%28b%5E2+%2B+d%5E2%29 ALIGN=MIDDLE  ALT=\"a%5E2%2Fb%5E2+=+c%5E2%2Fd%5E2+=+%28a%5E2+%2B+c%5E2%29%2F%28b%5E2+%2B+d%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > for the same given a:b :: c:d.  </SPAN>\n" );
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