document.write( "Question 201613: What is the largest four-digit number such that the second digit is one-fourth of the third digit, the third digit is twice the first digit, and the last digit is the same as the first digit?\r
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Algebra.Com's Answer #151829 by RAY100(1637)\"\" \"About 
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Let,,w,x,y,z,,,be four digits in order.
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\n" ); document.write( "x=1/4 y
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\n" ); document.write( "y=2w,,,,therefore x = 1/4 * 2w = w/2
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\n" ); document.write( "z=w
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\n" ); document.write( "rewriting the digits,,,,,w,,w/2,,,2w,,,w
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\n" ); document.write( "2w is \"largest\" digit,,,,like to set to 9 but also have a digit, (w/2) ,,,therefore 2w =8 is largest possible.
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\n" ); document.write( "restating digits,,,4,,,2,,,8,,,4,
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\n" ); document.write( "checking, numbers match criteria.
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