Home / 657,906.20-985,547.10-458,451.80

Finding the Fourth Proportional to 657,906.20, 985,547.10 and 458,451.80

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Solution

The fourth proportional to 657,906.20, 985,547.10 and 458,451.80 is: 686,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,906.20 : 985,547.10 = 458,451.80 : x
  2. Step 2: Convert to fraction form
    657,906.20/985,547.10 = 458,451.80/x
  3. Step 3: Cross multiply
    657,906.20x = 985,547.10 × 458,451.80
  4. Step 4: Simplify right side
    657,906.20x = 451,825,841,979.78
  5. Step 5: Solve for x
    x = 451,825,841,979.78/657,906.20
  6. Step 6: Final answer
    x = 686,763.31

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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.