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Finding the Third Proportional to 265,718 and 394,792

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Solution

The third proportional to 265,718 and 394,792 is: 586,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,718 : 394,792 = 394,792 : x
  2. Step 2: Convert to fraction form
    265,718/394,792 = 394,792/x
  3. Step 3: Cross multiply
    265,718x = 394,792 × 394,792
  4. Step 4: Simplify right side
    265,718x = 155,860,723,264
  5. Step 5: Solve for x
    x = 155,860,723,264/265,718
  6. Step 6: Final answer
    x = 586,564.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.