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Finding the Fourth Proportional to 384,672.20, 577,482.15 and 242,517.20

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Solution

The fourth proportional to 384,672.20, 577,482.15 and 242,517.20 is: 364,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,672.20 : 577,482.15 = 242,517.20 : x
  2. Step 2: Convert to fraction form
    384,672.20/577,482.15 = 242,517.20/x
  3. Step 3: Cross multiply
    384,672.20x = 577,482.15 × 242,517.20
  4. Step 4: Simplify right side
    384,672.20x = 140,049,354,067.98
  5. Step 5: Solve for x
    x = 140,049,354,067.98/384,672.20
  6. Step 6: Final answer
    x = 364,074.54

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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.