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Finding the Fourth Proportional to 262.94, 394.11 and 235.62

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Solution

The fourth proportional to 262.94, 394.11 and 235.62 is: 353.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.94 : 394.11 = 235.62 : x
  2. Step 2: Convert to fraction form
    262.94/394.11 = 235.62/x
  3. Step 3: Cross multiply
    262.94x = 394.11 × 235.62
  4. Step 4: Simplify right side
    262.94x = 92,860.20
  5. Step 5: Solve for x
    x = 92,860.20/262.94
  6. Step 6: Final answer
    x = 353.17

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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.