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Finding the Third Proportional to 188,966 and 414,790

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Solution

The third proportional to 188,966 and 414,790 is: 910,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,966 : 414,790 = 414,790 : x
  2. Step 2: Convert to fraction form
    188,966/414,790 = 414,790/x
  3. Step 3: Cross multiply
    188,966x = 414,790 × 414,790
  4. Step 4: Simplify right side
    188,966x = 172,050,744,100
  5. Step 5: Solve for x
    x = 172,050,744,100/188,966
  6. Step 6: Final answer
    x = 910,485.19

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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.