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Finding the Third Proportional to 905,000 and 1,949,872

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Solution

The third proportional to 905,000 and 1,949,872 is: 4,201,105.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,000 : 1,949,872 = 1,949,872 : x
  2. Step 2: Convert to fraction form
    905,000/1,949,872 = 1,949,872/x
  3. Step 3: Cross multiply
    905,000x = 1,949,872 × 1,949,872
  4. Step 4: Simplify right side
    905,000x = 3,802,000,816,384
  5. Step 5: Solve for x
    x = 3,802,000,816,384/905,000
  6. Step 6: Final answer
    x = 4,201,105.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.