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Finding the Fourth Proportional to 352.91, 528.28 and 244.64

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Solution

The fourth proportional to 352.91, 528.28 and 244.64 is: 366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.91 : 528.28 = 244.64 : x
  2. Step 2: Convert to fraction form
    352.91/528.28 = 244.64/x
  3. Step 3: Cross multiply
    352.91x = 528.28 × 244.64
  4. Step 4: Simplify right side
    352.91x = 129,238.42
  5. Step 5: Solve for x
    x = 129,238.42/352.91
  6. Step 6: Final answer
    x = 366.21

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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.