Home / 657,631.60-986,447.40-618,265.60

Finding the Fourth Proportional to 657,631.60, 986,447.40 and 618,265.60

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Solution

The fourth proportional to 657,631.60, 986,447.40 and 618,265.60 is: 927,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,631.60 : 986,447.40 = 618,265.60 : x
  2. Step 2: Convert to fraction form
    657,631.60/986,447.40 = 618,265.60/x
  3. Step 3: Cross multiply
    657,631.60x = 986,447.40 × 618,265.60
  4. Step 4: Simplify right side
    657,631.60x = 609,886,493,629.44
  5. Step 5: Solve for x
    x = 609,886,493,629.44/657,631.60
  6. Step 6: Final answer
    x = 927,398.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.