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Finding the Fourth Proportional to 429,161.28, 644,082.08 and 226,900.96

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Solution

The fourth proportional to 429,161.28, 644,082.08 and 226,900.96 is: 340,531.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,161.28 : 644,082.08 = 226,900.96 : x
  2. Step 2: Convert to fraction form
    429,161.28/644,082.08 = 226,900.96/x
  3. Step 3: Cross multiply
    429,161.28x = 644,082.08 × 226,900.96
  4. Step 4: Simplify right side
    429,161.28x = 146,142,842,270.80
  5. Step 5: Solve for x
    x = 146,142,842,270.80/429,161.28
  6. Step 6: Final answer
    x = 340,531.29

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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.