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Finding the Third Proportional to 188,869 and 414,951

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Solution

The third proportional to 188,869 and 414,951 is: 911,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,869 : 414,951 = 414,951 : x
  2. Step 2: Convert to fraction form
    188,869/414,951 = 414,951/x
  3. Step 3: Cross multiply
    188,869x = 414,951 × 414,951
  4. Step 4: Simplify right side
    188,869x = 172,184,332,401
  5. Step 5: Solve for x
    x = 172,184,332,401/188,869
  6. Step 6: Final answer
    x = 911,660.11

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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.