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Finding the Fourth Proportional to 396,469.94, 594,766.88 and 130,169.88

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Solution

The fourth proportional to 396,469.94, 594,766.88 and 130,169.88 is: 195,275.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,469.94 : 594,766.88 = 130,169.88 : x
  2. Step 2: Convert to fraction form
    396,469.94/594,766.88 = 130,169.88/x
  3. Step 3: Cross multiply
    396,469.94x = 594,766.88 × 130,169.88
  4. Step 4: Simplify right side
    396,469.94x = 77,420,732,746.73
  5. Step 5: Solve for x
    x = 77,420,732,746.73/396,469.94
  6. Step 6: Final answer
    x = 195,275.17

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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.