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Finding the Third Proportional to 352,809 and 762,207

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Solution

The third proportional to 352,809 and 762,207 is: 1,646,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,809 : 762,207 = 762,207 : x
  2. Step 2: Convert to fraction form
    352,809/762,207 = 762,207/x
  3. Step 3: Cross multiply
    352,809x = 762,207 × 762,207
  4. Step 4: Simplify right side
    352,809x = 580,959,510,849
  5. Step 5: Solve for x
    x = 580,959,510,849/352,809
  6. Step 6: Final answer
    x = 1,646,668.62

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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.