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Finding the Fourth Proportional to 347,600.24, 479,698.44 and 196,694

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Solution

The fourth proportional to 347,600.24, 479,698.44 and 196,694 is: 271,443.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,600.24 : 479,698.44 = 196,694 : x
  2. Step 2: Convert to fraction form
    347,600.24/479,698.44 = 196,694/x
  3. Step 3: Cross multiply
    347,600.24x = 479,698.44 × 196,694
  4. Step 4: Simplify right side
    347,600.24x = 94,353,804,957.36
  5. Step 5: Solve for x
    x = 94,353,804,957.36/347,600.24
  6. Step 6: Final answer
    x = 271,443.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.