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Finding the Third Proportional to 828,189 and 1,786,860

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Solution

The third proportional to 828,189 and 1,786,860 is: 3,855,241.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,189 : 1,786,860 = 1,786,860 : x
  2. Step 2: Convert to fraction form
    828,189/1,786,860 = 1,786,860/x
  3. Step 3: Cross multiply
    828,189x = 1,786,860 × 1,786,860
  4. Step 4: Simplify right side
    828,189x = 3,192,868,659,600
  5. Step 5: Solve for x
    x = 3,192,868,659,600/828,189
  6. Step 6: Final answer
    x = 3,855,241.57

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.