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Finding the Fourth Proportional to 432,601.80, 648,902.70 and 255,454.80

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Solution

The fourth proportional to 432,601.80, 648,902.70 and 255,454.80 is: 383,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,601.80 : 648,902.70 = 255,454.80 : x
  2. Step 2: Convert to fraction form
    432,601.80/648,902.70 = 255,454.80/x
  3. Step 3: Cross multiply
    432,601.80x = 648,902.70 × 255,454.80
  4. Step 4: Simplify right side
    432,601.80x = 165,765,309,447.96
  5. Step 5: Solve for x
    x = 165,765,309,447.96/432,601.80
  6. Step 6: Final answer
    x = 383,182.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.