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Finding the Fourth Proportional to 624,358.12, 861,616.35 and 337,878.13

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Solution

The fourth proportional to 624,358.12, 861,616.35 and 337,878.13 is: 466,272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,358.12 : 861,616.35 = 337,878.13 : x
  2. Step 2: Convert to fraction form
    624,358.12/861,616.35 = 337,878.13/x
  3. Step 3: Cross multiply
    624,358.12x = 861,616.35 × 337,878.13
  4. Step 4: Simplify right side
    624,358.12x = 291,121,321,115.43
  5. Step 5: Solve for x
    x = 291,121,321,115.43/624,358.12
  6. Step 6: Final answer
    x = 466,272.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.