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Finding the Third Proportional to 201,048 and 422,760

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Solution

The third proportional to 201,048 and 422,760 is: 888,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,048 : 422,760 = 422,760 : x
  2. Step 2: Convert to fraction form
    201,048/422,760 = 422,760/x
  3. Step 3: Cross multiply
    201,048x = 422,760 × 422,760
  4. Step 4: Simplify right side
    201,048x = 178,726,017,600
  5. Step 5: Solve for x
    x = 178,726,017,600/201,048
  6. Step 6: Final answer
    x = 888,971.88

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.