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Finding the Fourth Proportional to 522,439.52, 721,009.50 and 292,992.44

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Solution

The fourth proportional to 522,439.52, 721,009.50 and 292,992.44 is: 404,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,439.52 : 721,009.50 = 292,992.44 : x
  2. Step 2: Convert to fraction form
    522,439.52/721,009.50 = 292,992.44/x
  3. Step 3: Cross multiply
    522,439.52x = 721,009.50 × 292,992.44
  4. Step 4: Simplify right side
    522,439.52x = 211,250,332,668.18
  5. Step 5: Solve for x
    x = 211,250,332,668.18/522,439.52
  6. Step 6: Final answer
    x = 404,353.66

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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.