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Finding the Fourth Proportional to 363,748.80, 545,720.40 and 324,577.20

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Solution

The fourth proportional to 363,748.80, 545,720.40 and 324,577.20 is: 486,952.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,748.80 : 545,720.40 = 324,577.20 : x
  2. Step 2: Convert to fraction form
    363,748.80/545,720.40 = 324,577.20/x
  3. Step 3: Cross multiply
    363,748.80x = 545,720.40 × 324,577.20
  4. Step 4: Simplify right side
    363,748.80x = 177,128,399,414.88
  5. Step 5: Solve for x
    x = 177,128,399,414.88/363,748.80
  6. Step 6: Final answer
    x = 486,952.53

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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.