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Finding the Fourth Proportional to 363,903.20, 545,854.80 and 325,849.40

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Solution

The fourth proportional to 363,903.20, 545,854.80 and 325,849.40 is: 488,774.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,903.20 : 545,854.80 = 325,849.40 : x
  2. Step 2: Convert to fraction form
    363,903.20/545,854.80 = 325,849.40/x
  3. Step 3: Cross multiply
    363,903.20x = 545,854.80 × 325,849.40
  4. Step 4: Simplify right side
    363,903.20x = 177,866,459,067.12
  5. Step 5: Solve for x
    x = 177,866,459,067.12/363,903.20
  6. Step 6: Final answer
    x = 488,774.10

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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.