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Finding the Third Proportional to 646,668 and 1,396,584

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Solution

The third proportional to 646,668 and 1,396,584 is: 3,016,148.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,668 : 1,396,584 = 1,396,584 : x
  2. Step 2: Convert to fraction form
    646,668/1,396,584 = 1,396,584/x
  3. Step 3: Cross multiply
    646,668x = 1,396,584 × 1,396,584
  4. Step 4: Simplify right side
    646,668x = 1,950,446,869,056
  5. Step 5: Solve for x
    x = 1,950,446,869,056/646,668
  6. Step 6: Final answer
    x = 3,016,148.73

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.