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Finding the Third Proportional to 180,896 and 397,882

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Solution

The third proportional to 180,896 and 397,882 is: 875,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,896 : 397,882 = 397,882 : x
  2. Step 2: Convert to fraction form
    180,896/397,882 = 397,882/x
  3. Step 3: Cross multiply
    180,896x = 397,882 × 397,882
  4. Step 4: Simplify right side
    180,896x = 158,310,085,924
  5. Step 5: Solve for x
    x = 158,310,085,924/180,896
  6. Step 6: Final answer
    x = 875,144.20

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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.