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Finding the Third Proportional to 206,882 and 316,337

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Solution

The third proportional to 206,882 and 316,337 is: 483,701.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,882 : 316,337 = 316,337 : x
  2. Step 2: Convert to fraction form
    206,882/316,337 = 316,337/x
  3. Step 3: Cross multiply
    206,882x = 316,337 × 316,337
  4. Step 4: Simplify right side
    206,882x = 100,069,097,569
  5. Step 5: Solve for x
    x = 100,069,097,569/206,882
  6. Step 6: Final answer
    x = 483,701.33

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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.