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Finding the Third Proportional to 331,329 and 441,439

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Solution

The third proportional to 331,329 and 441,439 is: 588,141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,329 : 441,439 = 441,439 : x
  2. Step 2: Convert to fraction form
    331,329/441,439 = 441,439/x
  3. Step 3: Cross multiply
    331,329x = 441,439 × 441,439
  4. Step 4: Simplify right side
    331,329x = 194,868,390,721
  5. Step 5: Solve for x
    x = 194,868,390,721/331,329
  6. Step 6: Final answer
    x = 588,141.67

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.