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Finding the Fourth Proportional to 463,391.33, 639,149.82 and 425,273.97

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Solution

The fourth proportional to 463,391.33, 639,149.82 and 425,273.97 is: 586,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,391.33 : 639,149.82 = 425,273.97 : x
  2. Step 2: Convert to fraction form
    463,391.33/639,149.82 = 425,273.97/x
  3. Step 3: Cross multiply
    463,391.33x = 639,149.82 × 425,273.97
  4. Step 4: Simplify right side
    463,391.33x = 271,813,781,376.19
  5. Step 5: Solve for x
    x = 271,813,781,376.19/463,391.33
  6. Step 6: Final answer
    x = 586,575.03

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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.