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Finding the Fourth Proportional to 396,686.26, 595,048.52 and 130,440.88

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Solution

The fourth proportional to 396,686.26, 595,048.52 and 130,440.88 is: 195,667.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,686.26 : 595,048.52 = 130,440.88 : x
  2. Step 2: Convert to fraction form
    396,686.26/595,048.52 = 130,440.88/x
  3. Step 3: Cross multiply
    396,686.26x = 595,048.52 × 130,440.88
  4. Step 4: Simplify right side
    396,686.26x = 77,618,652,591.50
  5. Step 5: Solve for x
    x = 77,618,652,591.50/396,686.26
  6. Step 6: Final answer
    x = 195,667.61

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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.