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Finding the Third Proportional to 798,390 and 1,205,874

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Solution

The third proportional to 798,390 and 1,205,874 is: 1,821,330.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,390 : 1,205,874 = 1,205,874 : x
  2. Step 2: Convert to fraction form
    798,390/1,205,874 = 1,205,874/x
  3. Step 3: Cross multiply
    798,390x = 1,205,874 × 1,205,874
  4. Step 4: Simplify right side
    798,390x = 1,454,132,103,876
  5. Step 5: Solve for x
    x = 1,454,132,103,876/798,390
  6. Step 6: Final answer
    x = 1,821,330.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.