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Finding the Fourth Proportional to 396,342.98, 594,576.42 and 130,042.92

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Solution

The fourth proportional to 396,342.98, 594,576.42 and 130,042.92 is: 195,084.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,342.98 : 594,576.42 = 130,042.92 : x
  2. Step 2: Convert to fraction form
    396,342.98/594,576.42 = 130,042.92/x
  3. Step 3: Cross multiply
    396,342.98x = 594,576.42 × 130,042.92
  4. Step 4: Simplify right side
    396,342.98x = 77,320,453,819.95
  5. Step 5: Solve for x
    x = 77,320,453,819.95/396,342.98
  6. Step 6: Final answer
    x = 195,084.71

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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.