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Finding the Third Proportional to 664,786 and 996,906

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Solution

The third proportional to 664,786 and 996,906 is: 1,494,949.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,786 : 996,906 = 996,906 : x
  2. Step 2: Convert to fraction form
    664,786/996,906 = 996,906/x
  3. Step 3: Cross multiply
    664,786x = 996,906 × 996,906
  4. Step 4: Simplify right side
    664,786x = 993,821,572,836
  5. Step 5: Solve for x
    x = 993,821,572,836/664,786
  6. Step 6: Final answer
    x = 1,494,949.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.