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Finding the Third Proportional to 548,668 and 1,321,660

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Solution

The third proportional to 548,668 and 1,321,660 is: 3,183,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,668 : 1,321,660 = 1,321,660 : x
  2. Step 2: Convert to fraction form
    548,668/1,321,660 = 1,321,660/x
  3. Step 3: Cross multiply
    548,668x = 1,321,660 × 1,321,660
  4. Step 4: Simplify right side
    548,668x = 1,746,785,155,600
  5. Step 5: Solve for x
    x = 1,746,785,155,600/548,668
  6. Step 6: Final answer
    x = 3,183,683.31

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.