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Finding the Third Proportional to 414,218 and 905,974

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Solution

The third proportional to 414,218 and 905,974 is: 1,981,538.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,218 : 905,974 = 905,974 : x
  2. Step 2: Convert to fraction form
    414,218/905,974 = 905,974/x
  3. Step 3: Cross multiply
    414,218x = 905,974 × 905,974
  4. Step 4: Simplify right side
    414,218x = 820,788,888,676
  5. Step 5: Solve for x
    x = 820,788,888,676/414,218
  6. Step 6: Final answer
    x = 1,981,538.44

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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.