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Finding the Third Proportional to 836,645 and 1,256,876

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Solution

The third proportional to 836,645 and 1,256,876 is: 1,888,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,645 : 1,256,876 = 1,256,876 : x
  2. Step 2: Convert to fraction form
    836,645/1,256,876 = 1,256,876/x
  3. Step 3: Cross multiply
    836,645x = 1,256,876 × 1,256,876
  4. Step 4: Simplify right side
    836,645x = 1,579,737,279,376
  5. Step 5: Solve for x
    x = 1,579,737,279,376/836,645
  6. Step 6: Final answer
    x = 1,888,181.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.