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Finding the Third Proportional to 666,132 and 981,558

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Solution

The third proportional to 666,132 and 981,558 is: 1,446,344.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,132 : 981,558 = 981,558 : x
  2. Step 2: Convert to fraction form
    666,132/981,558 = 981,558/x
  3. Step 3: Cross multiply
    666,132x = 981,558 × 981,558
  4. Step 4: Simplify right side
    666,132x = 963,456,107,364
  5. Step 5: Solve for x
    x = 963,456,107,364/666,132
  6. Step 6: Final answer
    x = 1,446,344.13

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.