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Finding the Fourth Proportional to 396,237.56, 594,397.89 and 171,620.70

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Solution

The fourth proportional to 396,237.56, 594,397.89 and 171,620.70 is: 257,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,237.56 : 594,397.89 = 171,620.70 : x
  2. Step 2: Convert to fraction form
    396,237.56/594,397.89 = 171,620.70/x
  3. Step 3: Cross multiply
    396,237.56x = 594,397.89 × 171,620.70
  4. Step 4: Simplify right side
    396,237.56x = 102,010,981,960.32
  5. Step 5: Solve for x
    x = 102,010,981,960.32/396,237.56
  6. Step 6: Final answer
    x = 257,449.05

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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.