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Finding the Fourth Proportional to 624,210.85, 861,404.84 and 337,724.65

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Solution

The fourth proportional to 624,210.85, 861,404.84 and 337,724.65 is: 466,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,210.85 : 861,404.84 = 337,724.65 : x
  2. Step 2: Convert to fraction form
    624,210.85/861,404.84 = 337,724.65/x
  3. Step 3: Cross multiply
    624,210.85x = 861,404.84 × 337,724.65
  4. Step 4: Simplify right side
    624,210.85x = 290,917,643,790.28
  5. Step 5: Solve for x
    x = 290,917,643,790.28/624,210.85
  6. Step 6: Final answer
    x = 466,056.70

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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.