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Finding the Third Proportional to 169,466 and 372,790

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Solution

The third proportional to 169,466 and 372,790 is: 820,060.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,466 : 372,790 = 372,790 : x
  2. Step 2: Convert to fraction form
    169,466/372,790 = 372,790/x
  3. Step 3: Cross multiply
    169,466x = 372,790 × 372,790
  4. Step 4: Simplify right side
    169,466x = 138,972,384,100
  5. Step 5: Solve for x
    x = 138,972,384,100/169,466
  6. Step 6: Final answer
    x = 820,060.57

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.