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Finding the Third Proportional to 231,608 and 347,412

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Solution

The third proportional to 231,608 and 347,412 is: 521,118

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,608 : 347,412 = 347,412 : x
  2. Step 2: Convert to fraction form
    231,608/347,412 = 347,412/x
  3. Step 3: Cross multiply
    231,608x = 347,412 × 347,412
  4. Step 4: Simplify right side
    231,608x = 120,695,097,744
  5. Step 5: Solve for x
    x = 120,695,097,744/231,608
  6. Step 6: Final answer
    x = 521,118

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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.