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Finding the Third Proportional to 512,876 and 1,187,217

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Solution

The third proportional to 512,876 and 1,187,217 is: 2,748,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,876 : 1,187,217 = 1,187,217 : x
  2. Step 2: Convert to fraction form
    512,876/1,187,217 = 1,187,217/x
  3. Step 3: Cross multiply
    512,876x = 1,187,217 × 1,187,217
  4. Step 4: Simplify right side
    512,876x = 1,409,484,205,089
  5. Step 5: Solve for x
    x = 1,409,484,205,089/512,876
  6. Step 6: Final answer
    x = 2,748,196.85

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.