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Finding the Fourth Proportional to 324,557.90, 486,721.65 and 224,717.90

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Solution

The fourth proportional to 324,557.90, 486,721.65 and 224,717.90 is: 336,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,557.90 : 486,721.65 = 224,717.90 : x
  2. Step 2: Convert to fraction form
    324,557.90/486,721.65 = 224,717.90/x
  3. Step 3: Cross multiply
    324,557.90x = 486,721.65 × 224,717.90
  4. Step 4: Simplify right side
    324,557.90x = 109,375,067,072.54
  5. Step 5: Solve for x
    x = 109,375,067,072.54/324,557.90
  6. Step 6: Final answer
    x = 336,997.09

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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.