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Finding the Third Proportional to 812,872 and 1,265,836

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Solution

The third proportional to 812,872 and 1,265,836 is: 1,971,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,872 : 1,265,836 = 1,265,836 : x
  2. Step 2: Convert to fraction form
    812,872/1,265,836 = 1,265,836/x
  3. Step 3: Cross multiply
    812,872x = 1,265,836 × 1,265,836
  4. Step 4: Simplify right side
    812,872x = 1,602,340,778,896
  5. Step 5: Solve for x
    x = 1,602,340,778,896/812,872
  6. Step 6: Final answer
    x = 1,971,209.22

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.