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Finding the Fourth Proportional to 552,488.56, 762,493.20 and 323,116

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Solution

The fourth proportional to 552,488.56, 762,493.20 and 323,116 is: 445,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,488.56 : 762,493.20 = 323,116 : x
  2. Step 2: Convert to fraction form
    552,488.56/762,493.20 = 323,116/x
  3. Step 3: Cross multiply
    552,488.56x = 762,493.20 × 323,116
  4. Step 4: Simplify right side
    552,488.56x = 246,373,752,811.20
  5. Step 5: Solve for x
    x = 246,373,752,811.20/552,488.56
  6. Step 6: Final answer
    x = 445,934.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.