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Finding the Fourth Proportional to 624,300.65, 861,537.20 and 337,820.75

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Solution

The fourth proportional to 624,300.65, 861,537.20 and 337,820.75 is: 466,193.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,300.65 : 861,537.20 = 337,820.75 : x
  2. Step 2: Convert to fraction form
    624,300.65/861,537.20 = 337,820.75/x
  3. Step 3: Cross multiply
    624,300.65x = 861,537.20 × 337,820.75
  4. Step 4: Simplify right side
    624,300.65x = 291,045,143,056.90
  5. Step 5: Solve for x
    x = 291,045,143,056.90/624,300.65
  6. Step 6: Final answer
    x = 466,193.88

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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.