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Finding the Third Proportional to 313,668 and 679,104

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Solution

The third proportional to 313,668 and 679,104 is: 1,470,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,668 : 679,104 = 679,104 : x
  2. Step 2: Convert to fraction form
    313,668/679,104 = 679,104/x
  3. Step 3: Cross multiply
    313,668x = 679,104 × 679,104
  4. Step 4: Simplify right side
    313,668x = 461,182,242,816
  5. Step 5: Solve for x
    x = 461,182,242,816/313,668
  6. Step 6: Final answer
    x = 1,470,287.83

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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.