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Finding the Fourth Proportional to 469,883.54, 648,439.92 and 255,023.61

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Solution

The fourth proportional to 469,883.54, 648,439.92 and 255,023.61 is: 351,932.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,883.54 : 648,439.92 = 255,023.61 : x
  2. Step 2: Convert to fraction form
    469,883.54/648,439.92 = 255,023.61/x
  3. Step 3: Cross multiply
    469,883.54x = 648,439.92 × 255,023.61
  4. Step 4: Simplify right side
    469,883.54x = 165,367,486,834.86
  5. Step 5: Solve for x
    x = 165,367,486,834.86/469,883.54
  6. Step 6: Final answer
    x = 351,932.92

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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.