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Finding the Third Proportional to 396,192 and 853,986

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Solution

The third proportional to 396,192 and 853,986 is: 1,840,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,192 : 853,986 = 853,986 : x
  2. Step 2: Convert to fraction form
    396,192/853,986 = 853,986/x
  3. Step 3: Cross multiply
    396,192x = 853,986 × 853,986
  4. Step 4: Simplify right side
    396,192x = 729,292,088,196
  5. Step 5: Solve for x
    x = 729,292,088,196/396,192
  6. Step 6: Final answer
    x = 1,840,754.20

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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.