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Finding the Third Proportional to 189,382 and 414,398

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Solution

The third proportional to 189,382 and 414,398 is: 906,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,382 : 414,398 = 414,398 : x
  2. Step 2: Convert to fraction form
    189,382/414,398 = 414,398/x
  3. Step 3: Cross multiply
    189,382x = 414,398 × 414,398
  4. Step 4: Simplify right side
    189,382x = 171,725,702,404
  5. Step 5: Solve for x
    x = 171,725,702,404/189,382
  6. Step 6: Final answer
    x = 906,768.87

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.