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Finding the Fourth Proportional to 528.56, 792.95 and 163.34

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Solution

The fourth proportional to 528.56, 792.95 and 163.34 is: 245.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.56 : 792.95 = 163.34 : x
  2. Step 2: Convert to fraction form
    528.56/792.95 = 163.34/x
  3. Step 3: Cross multiply
    528.56x = 792.95 × 163.34
  4. Step 4: Simplify right side
    528.56x = 129,516.28
  5. Step 5: Solve for x
    x = 129,516.28/528.56
  6. Step 6: Final answer
    x = 245.03

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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.