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Finding the Fourth Proportional to 339,068.38, 508,691.19 and 196,776.87

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Solution

The fourth proportional to 339,068.38, 508,691.19 and 196,776.87 is: 295,216.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,068.38 : 508,691.19 = 196,776.87 : x
  2. Step 2: Convert to fraction form
    339,068.38/508,691.19 = 196,776.87/x
  3. Step 3: Cross multiply
    339,068.38x = 508,691.19 × 196,776.87
  4. Step 4: Simplify right side
    339,068.38x = 100,098,658,124.47
  5. Step 5: Solve for x
    x = 100,098,658,124.47/339,068.38
  6. Step 6: Final answer
    x = 295,216.73

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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.