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Finding the Fourth Proportional to 624,391.68, 861,660.50 and 337,911.76

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Solution

The fourth proportional to 624,391.68, 861,660.50 and 337,911.76 is: 466,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,391.68 : 861,660.50 = 337,911.76 : x
  2. Step 2: Convert to fraction form
    624,391.68/861,660.50 = 337,911.76/x
  3. Step 3: Cross multiply
    624,391.68x = 861,660.50 × 337,911.76
  4. Step 4: Simplify right side
    624,391.68x = 291,165,214,387.92
  5. Step 5: Solve for x
    x = 291,165,214,387.92/624,391.68
  6. Step 6: Final answer
    x = 466,318.22

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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.