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Finding the Third Proportional to 197,450 and 426,422

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Solution

The third proportional to 197,450 and 426,422 is: 920,920.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,450 : 426,422 = 426,422 : x
  2. Step 2: Convert to fraction form
    197,450/426,422 = 426,422/x
  3. Step 3: Cross multiply
    197,450x = 426,422 × 426,422
  4. Step 4: Simplify right side
    197,450x = 181,835,722,084
  5. Step 5: Solve for x
    x = 181,835,722,084/197,450
  6. Step 6: Final answer
    x = 920,920.34

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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.