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Finding the Third Proportional to 817,869 and 1,241,520

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Solution

The third proportional to 817,869 and 1,241,520 is: 1,884,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,869 : 1,241,520 = 1,241,520 : x
  2. Step 2: Convert to fraction form
    817,869/1,241,520 = 1,241,520/x
  3. Step 3: Cross multiply
    817,869x = 1,241,520 × 1,241,520
  4. Step 4: Simplify right side
    817,869x = 1,541,371,910,400
  5. Step 5: Solve for x
    x = 1,541,371,910,400/817,869
  6. Step 6: Final answer
    x = 1,884,619.55

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.