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Finding the Third Proportional to 181,394 and 393,860

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Solution

The third proportional to 181,394 and 393,860 is: 855,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,394 : 393,860 = 393,860 : x
  2. Step 2: Convert to fraction form
    181,394/393,860 = 393,860/x
  3. Step 3: Cross multiply
    181,394x = 393,860 × 393,860
  4. Step 4: Simplify right side
    181,394x = 155,125,699,600
  5. Step 5: Solve for x
    x = 155,125,699,600/181,394
  6. Step 6: Final answer
    x = 855,186.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.