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Finding the Third Proportional to 458,940 and 994,149

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Solution

The third proportional to 458,940 and 994,149 is: 2,153,510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,940 : 994,149 = 994,149 : x
  2. Step 2: Convert to fraction form
    458,940/994,149 = 994,149/x
  3. Step 3: Cross multiply
    458,940x = 994,149 × 994,149
  4. Step 4: Simplify right side
    458,940x = 988,332,234,201
  5. Step 5: Solve for x
    x = 988,332,234,201/458,940
  6. Step 6: Final answer
    x = 2,153,510.77

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.