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Finding the Third Proportional to 201,818 and 442,996

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Solution

The third proportional to 201,818 and 442,996 is: 972,388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,818 : 442,996 = 442,996 : x
  2. Step 2: Convert to fraction form
    201,818/442,996 = 442,996/x
  3. Step 3: Cross multiply
    201,818x = 442,996 × 442,996
  4. Step 4: Simplify right side
    201,818x = 196,245,456,016
  5. Step 5: Solve for x
    x = 196,245,456,016/201,818
  6. Step 6: Final answer
    x = 972,388.27

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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.