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Finding the Third Proportional to 248,424 and 394,019

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Solution

The third proportional to 248,424 and 394,019 is: 624,943.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,424 : 394,019 = 394,019 : x
  2. Step 2: Convert to fraction form
    248,424/394,019 = 394,019/x
  3. Step 3: Cross multiply
    248,424x = 394,019 × 394,019
  4. Step 4: Simplify right side
    248,424x = 155,250,972,361
  5. Step 5: Solve for x
    x = 155,250,972,361/248,424
  6. Step 6: Final answer
    x = 624,943.53

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.