Home / 657,073.20-985,998.60-479,132.40

Finding the Fourth Proportional to 657,073.20, 985,998.60 and 479,132.40

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Solution

The fourth proportional to 657,073.20, 985,998.60 and 479,132.40 is: 718,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,073.20 : 985,998.60 = 479,132.40 : x
  2. Step 2: Convert to fraction form
    657,073.20/985,998.60 = 479,132.40/x
  3. Step 3: Cross multiply
    657,073.20x = 985,998.60 × 479,132.40
  4. Step 4: Simplify right side
    657,073.20x = 472,423,875,614.64
  5. Step 5: Solve for x
    x = 472,423,875,614.64/657,073.20
  6. Step 6: Final answer
    x = 718,982.11

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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.