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Finding the Third Proportional to 878,979.75 and 1,865,874

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Solution

The third proportional to 878,979.75 and 1,865,874 is: 3,960,825.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,979.75 : 1,865,874 = 1,865,874 : x
  2. Step 2: Convert to fraction form
    878,979.75/1,865,874 = 1,865,874/x
  3. Step 3: Cross multiply
    878,979.75x = 1,865,874 × 1,865,874
  4. Step 4: Simplify right side
    878,979.75x = 3,481,485,783,876
  5. Step 5: Solve for x
    x = 3,481,485,783,876/878,979.75
  6. Step 6: Final answer
    x = 3,960,825.93

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.