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Finding the Fourth Proportional to 624,378.62, 861,642.50 and 337,898.77

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Solution

The fourth proportional to 624,378.62, 861,642.50 and 337,898.77 is: 466,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,378.62 : 861,642.50 = 337,898.77 : x
  2. Step 2: Convert to fraction form
    624,378.62/861,642.50 = 337,898.77/x
  3. Step 3: Cross multiply
    624,378.62x = 861,642.50 × 337,898.77
  4. Step 4: Simplify right side
    624,378.62x = 291,147,937,086.13
  5. Step 5: Solve for x
    x = 291,147,937,086.13/624,378.62
  6. Step 6: Final answer
    x = 466,300.30

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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.