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Finding the Fourth Proportional to 663,131.46, 994,891.23 and 213,843.27

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Solution

The fourth proportional to 663,131.46, 994,891.23 and 213,843.27 is: 320,827.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,131.46 : 994,891.23 = 213,843.27 : x
  2. Step 2: Convert to fraction form
    663,131.46/994,891.23 = 213,843.27/x
  3. Step 3: Cross multiply
    663,131.46x = 994,891.23 × 213,843.27
  4. Step 4: Simplify right side
    663,131.46x = 212,750,793,917.52
  5. Step 5: Solve for x
    x = 212,750,793,917.52/663,131.46
  6. Step 6: Final answer
    x = 320,827.48

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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.