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Finding the Fourth Proportional to 313.14, 468.31 and 235.24

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Solution

The fourth proportional to 313.14, 468.31 and 235.24 is: 351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.14 : 468.31 = 235.24 : x
  2. Step 2: Convert to fraction form
    313.14/468.31 = 235.24/x
  3. Step 3: Cross multiply
    313.14x = 468.31 × 235.24
  4. Step 4: Simplify right side
    313.14x = 110,165.24
  5. Step 5: Solve for x
    x = 110,165.24/313.14
  6. Step 6: Final answer
    x = 351.81

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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.