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Finding the Fourth Proportional to 552,651.20, 829,414.20 and 215,853.20

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Solution

The fourth proportional to 552,651.20, 829,414.20 and 215,853.20 is: 323,950.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,651.20 : 829,414.20 = 215,853.20 : x
  2. Step 2: Convert to fraction form
    552,651.20/829,414.20 = 215,853.20/x
  3. Step 3: Cross multiply
    552,651.20x = 829,414.20 × 215,853.20
  4. Step 4: Simplify right side
    552,651.20x = 179,031,709,195.44
  5. Step 5: Solve for x
    x = 179,031,709,195.44/552,651.20
  6. Step 6: Final answer
    x = 323,950.64

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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.