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Finding the Third Proportional to 543,917 and 1,178,231

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Solution

The third proportional to 543,917 and 1,178,231 is: 2,552,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,917 : 1,178,231 = 1,178,231 : x
  2. Step 2: Convert to fraction form
    543,917/1,178,231 = 1,178,231/x
  3. Step 3: Cross multiply
    543,917x = 1,178,231 × 1,178,231
  4. Step 4: Simplify right side
    543,917x = 1,388,228,289,361
  5. Step 5: Solve for x
    x = 1,388,228,289,361/543,917
  6. Step 6: Final answer
    x = 2,552,279.65

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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.