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Finding the Third Proportional to 201,540 and 439,922

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Solution

The third proportional to 201,540 and 439,922 is: 960,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,540 : 439,922 = 439,922 : x
  2. Step 2: Convert to fraction form
    201,540/439,922 = 439,922/x
  3. Step 3: Cross multiply
    201,540x = 439,922 × 439,922
  4. Step 4: Simplify right side
    201,540x = 193,531,366,084
  5. Step 5: Solve for x
    x = 193,531,366,084/201,540
  6. Step 6: Final answer
    x = 960,262.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.