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Finding the Fourth Proportional to 552,748.56, 762,793.92 and 311,044.56

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Solution

The fourth proportional to 552,748.56, 762,793.92 and 311,044.56 is: 429,242.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,748.56 : 762,793.92 = 311,044.56 : x
  2. Step 2: Convert to fraction form
    552,748.56/762,793.92 = 311,044.56/x
  3. Step 3: Cross multiply
    552,748.56x = 762,793.92 × 311,044.56
  4. Step 4: Simplify right side
    552,748.56x = 237,262,899,217.08
  5. Step 5: Solve for x
    x = 237,262,899,217.08/552,748.56
  6. Step 6: Final answer
    x = 429,242.00

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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.