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Finding the Third Proportional to 200,189 and 439,753

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Solution

The third proportional to 200,189 and 439,753 is: 966,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,189 : 439,753 = 439,753 : x
  2. Step 2: Convert to fraction form
    200,189/439,753 = 439,753/x
  3. Step 3: Cross multiply
    200,189x = 439,753 × 439,753
  4. Step 4: Simplify right side
    200,189x = 193,382,701,009
  5. Step 5: Solve for x
    x = 193,382,701,009/200,189
  6. Step 6: Final answer
    x = 966,000.63

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.