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Finding the Fourth Proportional to 269,338.20, 404,007.30 and 206,352.60

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Solution

The fourth proportional to 269,338.20, 404,007.30 and 206,352.60 is: 309,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,338.20 : 404,007.30 = 206,352.60 : x
  2. Step 2: Convert to fraction form
    269,338.20/404,007.30 = 206,352.60/x
  3. Step 3: Cross multiply
    269,338.20x = 404,007.30 × 206,352.60
  4. Step 4: Simplify right side
    269,338.20x = 83,367,956,773.98
  5. Step 5: Solve for x
    x = 83,367,956,773.98/269,338.20
  6. Step 6: Final answer
    x = 309,528.90

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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.