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Finding the Fourth Proportional to 425,155.50, 586,715.19 and 231,563.97

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Solution

The fourth proportional to 425,155.50, 586,715.19 and 231,563.97 is: 319,558.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,155.50 : 586,715.19 = 231,563.97 : x
  2. Step 2: Convert to fraction form
    425,155.50/586,715.19 = 231,563.97/x
  3. Step 3: Cross multiply
    425,155.50x = 586,715.19 × 231,563.97
  4. Step 4: Simplify right side
    425,155.50x = 135,862,098,655.70
  5. Step 5: Solve for x
    x = 135,862,098,655.70/425,155.50
  6. Step 6: Final answer
    x = 319,558.61

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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.