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Finding the Fourth Proportional to 394,308.61, 544,145.24 and 224,542.73

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Solution

The fourth proportional to 394,308.61, 544,145.24 and 224,542.73 is: 309,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,308.61 : 544,145.24 = 224,542.73 : x
  2. Step 2: Convert to fraction form
    394,308.61/544,145.24 = 224,542.73/x
  3. Step 3: Cross multiply
    394,308.61x = 544,145.24 × 224,542.73
  4. Step 4: Simplify right side
    394,308.61x = 122,183,859,627.83
  5. Step 5: Solve for x
    x = 122,183,859,627.83/394,308.61
  6. Step 6: Final answer
    x = 309,868.61

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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.