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Finding the Third Proportional to 392,832 and 847,824

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Solution

The third proportional to 392,832 and 847,824 is: 1,829,803.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,832 : 847,824 = 847,824 : x
  2. Step 2: Convert to fraction form
    392,832/847,824 = 847,824/x
  3. Step 3: Cross multiply
    392,832x = 847,824 × 847,824
  4. Step 4: Simplify right side
    392,832x = 718,805,534,976
  5. Step 5: Solve for x
    x = 718,805,534,976/392,832
  6. Step 6: Final answer
    x = 1,829,803.92

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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.