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Finding the Third Proportional to 227,421 and 341,138

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Solution

The third proportional to 227,421 and 341,138 is: 511,716.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,421 : 341,138 = 341,138 : x
  2. Step 2: Convert to fraction form
    227,421/341,138 = 341,138/x
  3. Step 3: Cross multiply
    227,421x = 341,138 × 341,138
  4. Step 4: Simplify right side
    227,421x = 116,375,135,044
  5. Step 5: Solve for x
    x = 116,375,135,044/227,421
  6. Step 6: Final answer
    x = 511,716.75

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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.