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Finding the Third Proportional to 207,974 and 425,800

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Solution

The third proportional to 207,974 and 425,800 is: 871,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,974 : 425,800 = 425,800 : x
  2. Step 2: Convert to fraction form
    207,974/425,800 = 425,800/x
  3. Step 3: Cross multiply
    207,974x = 425,800 × 425,800
  4. Step 4: Simplify right side
    207,974x = 181,305,640,000
  5. Step 5: Solve for x
    x = 181,305,640,000/207,974
  6. Step 6: Final answer
    x = 871,770.70

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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.