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Finding the Third Proportional to 414,986 and 905,356

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Solution

The third proportional to 414,986 and 905,356 is: 1,975,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,986 : 905,356 = 905,356 : x
  2. Step 2: Convert to fraction form
    414,986/905,356 = 905,356/x
  3. Step 3: Cross multiply
    414,986x = 905,356 × 905,356
  4. Step 4: Simplify right side
    414,986x = 819,669,486,736
  5. Step 5: Solve for x
    x = 819,669,486,736/414,986
  6. Step 6: Final answer
    x = 1,975,173.83

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.