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Finding the Third Proportional to 188,822 and 386,356

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Solution

The third proportional to 188,822 and 386,356 is: 790,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,822 : 386,356 = 386,356 : x
  2. Step 2: Convert to fraction form
    188,822/386,356 = 386,356/x
  3. Step 3: Cross multiply
    188,822x = 386,356 × 386,356
  4. Step 4: Simplify right side
    188,822x = 149,270,958,736
  5. Step 5: Solve for x
    x = 149,270,958,736/188,822
  6. Step 6: Final answer
    x = 790,537.96

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.