SOLUTION: If four out of five doctors prefer fast food, then at a convention of 445 doctors how many prefer fast food? Use a proportion to solve the problem

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Question 408676: If four out of five doctors prefer fast food, then at a convention of 445 doctors how many prefer fast food? Use a proportion to solve the problem
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi

Let x represent how many of 445 doctors prefer fast food:

Question states*** four out of five doctors prefer fast food

 +4%2F5+=+x%2F445   |cross multiplying to solve for x

   5x = 4*445

    x = 356



CHECKING our Answer***

4/5 = 356/445