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Finding the Third Proportional to 188,406 and 409,536

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Solution

The third proportional to 188,406 and 409,536 is: 890,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,406 : 409,536 = 409,536 : x
  2. Step 2: Convert to fraction form
    188,406/409,536 = 409,536/x
  3. Step 3: Cross multiply
    188,406x = 409,536 × 409,536
  4. Step 4: Simplify right side
    188,406x = 167,719,735,296
  5. Step 5: Solve for x
    x = 167,719,735,296/188,406
  6. Step 6: Final answer
    x = 890,203.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.