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Finding the Fourth Proportional to 522,644.24, 721,558.24 and 329,217.76

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Solution

The fourth proportional to 522,644.24, 721,558.24 and 329,217.76 is: 454,515.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,644.24 : 721,558.24 = 329,217.76 : x
  2. Step 2: Convert to fraction form
    522,644.24/721,558.24 = 329,217.76/x
  3. Step 3: Cross multiply
    522,644.24x = 721,558.24 × 329,217.76
  4. Step 4: Simplify right side
    522,644.24x = 237,549,789,799.93
  5. Step 5: Solve for x
    x = 237,549,789,799.93/522,644.24
  6. Step 6: Final answer
    x = 454,515.27

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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.