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Finding the Fourth Proportional to 396,387.46, 594,425.67 and 159,686.02

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Solution

The fourth proportional to 396,387.46, 594,425.67 and 159,686.02 is: 239,466.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,387.46 : 594,425.67 = 159,686.02 : x
  2. Step 2: Convert to fraction form
    396,387.46/594,425.67 = 159,686.02/x
  3. Step 3: Cross multiply
    396,387.46x = 594,425.67 × 159,686.02
  4. Step 4: Simplify right side
    396,387.46x = 94,921,469,428.13
  5. Step 5: Solve for x
    x = 94,921,469,428.13/396,387.46
  6. Step 6: Final answer
    x = 239,466.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.