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Finding the Fourth Proportional to 331,711.52, 496,723.05 and 219,223.17

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Solution

The fourth proportional to 331,711.52, 496,723.05 and 219,223.17 is: 328,276.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,711.52 : 496,723.05 = 219,223.17 : x
  2. Step 2: Convert to fraction form
    331,711.52/496,723.05 = 219,223.17/x
  3. Step 3: Cross multiply
    331,711.52x = 496,723.05 × 219,223.17
  4. Step 4: Simplify right side
    331,711.52x = 108,893,201,633.07
  5. Step 5: Solve for x
    x = 108,893,201,633.07/331,711.52
  6. Step 6: Final answer
    x = 328,276.82

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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.