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Finding the Fourth Proportional to 366,979,599.90, 550,469,399.85 and 203,720,924.70

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Solution

The fourth proportional to 366,979,599.90, 550,469,399.85 and 203,720,924.70 is: 305,581,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,979,599.90 : 550,469,399.85 = 203,720,924.70 : x
  2. Step 2: Convert to fraction form
    366,979,599.90/550,469,399.85 = 203,720,924.70/x
  3. Step 3: Cross multiply
    366,979,599.90x = 550,469,399.85 × 203,720,924.70
  4. Step 4: Simplify right side
    366,979,599.90x = 112,142,135,156,496,032
  5. Step 5: Solve for x
    x = 112,142,135,156,496,032/366,979,599.90
  6. Step 6: Final answer
    x = 305,581,387.05

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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.