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Finding the Fourth Proportional to 552,197.20, 828,733.20 and 215,399.20

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Solution

The fourth proportional to 552,197.20, 828,733.20 and 215,399.20 is: 323,269.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,197.20 : 828,733.20 = 215,399.20 : x
  2. Step 2: Convert to fraction form
    552,197.20/828,733.20 = 215,399.20/x
  3. Step 3: Cross multiply
    552,197.20x = 828,733.20 × 215,399.20
  4. Step 4: Simplify right side
    552,197.20x = 178,508,468,293.44
  5. Step 5: Solve for x
    x = 178,508,468,293.44/552,197.20
  6. Step 6: Final answer
    x = 323,269.42

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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.