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Finding the Third Proportional to 179,694 and 391,263

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Solution

The third proportional to 179,694 and 391,263 is: 851,930.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,694 : 391,263 = 391,263 : x
  2. Step 2: Convert to fraction form
    179,694/391,263 = 391,263/x
  3. Step 3: Cross multiply
    179,694x = 391,263 × 391,263
  4. Step 4: Simplify right side
    179,694x = 153,086,735,169
  5. Step 5: Solve for x
    x = 153,086,735,169/179,694
  6. Step 6: Final answer
    x = 851,930.14

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.