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Finding the Third Proportional to 266,771 and 406,932

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Solution

The third proportional to 266,771 and 406,932 is: 620,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,771 : 406,932 = 406,932 : x
  2. Step 2: Convert to fraction form
    266,771/406,932 = 406,932/x
  3. Step 3: Cross multiply
    266,771x = 406,932 × 406,932
  4. Step 4: Simplify right side
    266,771x = 165,593,652,624
  5. Step 5: Solve for x
    x = 165,593,652,624/266,771
  6. Step 6: Final answer
    x = 620,733.34

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.