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Finding the Fourth Proportional to 494.16, 741.68 and 263.24

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Solution

The fourth proportional to 494.16, 741.68 and 263.24 is: 395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.16 : 741.68 = 263.24 : x
  2. Step 2: Convert to fraction form
    494.16/741.68 = 263.24/x
  3. Step 3: Cross multiply
    494.16x = 741.68 × 263.24
  4. Step 4: Simplify right side
    494.16x = 195,241.43
  5. Step 5: Solve for x
    x = 195,241.43/494.16
  6. Step 6: Final answer
    x = 395.10

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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.