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Finding the Fourth Proportional to 335.99, 463.63 and 231.17

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Solution

The fourth proportional to 335.99, 463.63 and 231.17 is: 318.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.99 : 463.63 = 231.17 : x
  2. Step 2: Convert to fraction form
    335.99/463.63 = 231.17/x
  3. Step 3: Cross multiply
    335.99x = 463.63 × 231.17
  4. Step 4: Simplify right side
    335.99x = 107,173.87
  5. Step 5: Solve for x
    x = 107,173.87/335.99
  6. Step 6: Final answer
    x = 318.98

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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.