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Finding the Fourth Proportional to 574,432.30, 792,695.19 and 319,778.02

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Solution

The fourth proportional to 574,432.30, 792,695.19 and 319,778.02 is: 441,281.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,432.30 : 792,695.19 = 319,778.02 : x
  2. Step 2: Convert to fraction form
    574,432.30/792,695.19 = 319,778.02/x
  3. Step 3: Cross multiply
    574,432.30x = 792,695.19 × 319,778.02
  4. Step 4: Simplify right side
    574,432.30x = 253,486,498,321.72
  5. Step 5: Solve for x
    x = 253,486,498,321.72/574,432.30
  6. Step 6: Final answer
    x = 441,281.76

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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.