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Finding the Fourth Proportional to 624,461.60, 861,759.36 and 337,981.76

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Solution

The fourth proportional to 624,461.60, 861,759.36 and 337,981.76 is: 466,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,461.60 : 861,759.36 = 337,981.76 : x
  2. Step 2: Convert to fraction form
    624,461.60/861,759.36 = 337,981.76/x
  3. Step 3: Cross multiply
    624,461.60x = 861,759.36 × 337,981.76
  4. Step 4: Simplify right side
    624,461.60x = 291,258,945,189.27
  5. Step 5: Solve for x
    x = 291,258,945,189.27/624,461.60
  6. Step 6: Final answer
    x = 466,416.10

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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.