Question 287945
If 2 and 1/2 inches represent 540 miles, how many miles does 4 inches represent?  Find the answer to the nearest tenth.
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540/2.5 = 216 miles/inch
4*216 = 864 miles
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Or you can do a proportion:
2.5:540::4:s
2.5s = 2160
s = 864 miles