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Finding the Fourth Proportional to 392,261.51, 588,392.27 and 274,163.51

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Solution

The fourth proportional to 392,261.51, 588,392.27 and 274,163.51 is: 411,245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,261.51 : 588,392.27 = 274,163.51 : x
  2. Step 2: Convert to fraction form
    392,261.51/588,392.27 = 274,163.51/x
  3. Step 3: Cross multiply
    392,261.51x = 588,392.27 × 274,163.51
  4. Step 4: Simplify right side
    392,261.51x = 161,315,685,687.29
  5. Step 5: Solve for x
    x = 161,315,685,687.29/392,261.51
  6. Step 6: Final answer
    x = 411,245.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.