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Finding the Third Proportional to 862,988 and 1,891,864

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Solution

The third proportional to 862,988 and 1,891,864 is: 4,147,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,988 : 1,891,864 = 1,891,864 : x
  2. Step 2: Convert to fraction form
    862,988/1,891,864 = 1,891,864/x
  3. Step 3: Cross multiply
    862,988x = 1,891,864 × 1,891,864
  4. Step 4: Simplify right side
    862,988x = 3,579,149,394,496
  5. Step 5: Solve for x
    x = 3,579,149,394,496/862,988
  6. Step 6: Final answer
    x = 4,147,391.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.