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Finding the Fourth Proportional to 396,234.55, 594,393.39 and 171,617.70

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Solution

The fourth proportional to 396,234.55, 594,393.39 and 171,617.70 is: 257,444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,234.55 : 594,393.39 = 171,617.70 : x
  2. Step 2: Convert to fraction form
    396,234.55/594,393.39 = 171,617.70/x
  3. Step 3: Cross multiply
    396,234.55x = 594,393.39 × 171,617.70
  4. Step 4: Simplify right side
    396,234.55x = 102,008,428,715.98
  5. Step 5: Solve for x
    x = 102,008,428,715.98/396,234.55
  6. Step 6: Final answer
    x = 257,444.56

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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.