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Finding the Fourth Proportional to 352.24, 528.76 and 190.24

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Solution

The fourth proportional to 352.24, 528.76 and 190.24 is: 285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.24 : 528.76 = 190.24 : x
  2. Step 2: Convert to fraction form
    352.24/528.76 = 190.24/x
  3. Step 3: Cross multiply
    352.24x = 528.76 × 190.24
  4. Step 4: Simplify right side
    352.24x = 100,591.30
  5. Step 5: Solve for x
    x = 100,591.30/352.24
  6. Step 6: Final answer
    x = 285.58

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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.