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Finding the Fourth Proportional to 339,497.76, 468,311.94 and 211,951.92

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Solution

The fourth proportional to 339,497.76, 468,311.94 and 211,951.92 is: 292,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,497.76 : 468,311.94 = 211,951.92 : x
  2. Step 2: Convert to fraction form
    339,497.76/468,311.94 = 211,951.92/x
  3. Step 3: Cross multiply
    339,497.76x = 468,311.94 × 211,951.92
  4. Step 4: Simplify right side
    339,497.76x = 99,259,614,841.92
  5. Step 5: Solve for x
    x = 99,259,614,841.92/339,497.76
  6. Step 6: Final answer
    x = 292,371.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.