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Finding the Third Proportional to 322,272 and 696,384

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Solution

The third proportional to 322,272 and 696,384 is: 1,504,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,272 : 696,384 = 696,384 : x
  2. Step 2: Convert to fraction form
    322,272/696,384 = 696,384/x
  3. Step 3: Cross multiply
    322,272x = 696,384 × 696,384
  4. Step 4: Simplify right side
    322,272x = 484,950,675,456
  5. Step 5: Solve for x
    x = 484,950,675,456/322,272
  6. Step 6: Final answer
    x = 1,504,786.87

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.