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Finding the Third Proportional to 419,122 and 857,612

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Solution

The third proportional to 419,122 and 857,612 is: 1,754,855.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,122 : 857,612 = 857,612 : x
  2. Step 2: Convert to fraction form
    419,122/857,612 = 857,612/x
  3. Step 3: Cross multiply
    419,122x = 857,612 × 857,612
  4. Step 4: Simplify right side
    419,122x = 735,498,342,544
  5. Step 5: Solve for x
    x = 735,498,342,544/419,122
  6. Step 6: Final answer
    x = 1,754,855.01

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.