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Finding the Third Proportional to 394,627 and 852,310

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Solution

The third proportional to 394,627 and 852,310 is: 1,840,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,627 : 852,310 = 852,310 : x
  2. Step 2: Convert to fraction form
    394,627/852,310 = 852,310/x
  3. Step 3: Cross multiply
    394,627x = 852,310 × 852,310
  4. Step 4: Simplify right side
    394,627x = 726,432,336,100
  5. Step 5: Solve for x
    x = 726,432,336,100/394,627
  6. Step 6: Final answer
    x = 1,840,807.49

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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.