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Finding the Fourth Proportional to 396,758.45, 595,160.18 and 126,910.29

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Solution

The fourth proportional to 396,758.45, 595,160.18 and 126,910.29 is: 190,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,758.45 : 595,160.18 = 126,910.29 : x
  2. Step 2: Convert to fraction form
    396,758.45/595,160.18 = 126,910.29/x
  3. Step 3: Cross multiply
    396,758.45x = 595,160.18 × 126,910.29
  4. Step 4: Simplify right side
    396,758.45x = 75,531,950,405.70
  5. Step 5: Solve for x
    x = 75,531,950,405.70/396,758.45
  6. Step 6: Final answer
    x = 190,372.63

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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.