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Finding the Fourth Proportional to 317.46, 475.02 and 236.16

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Solution

The fourth proportional to 317.46, 475.02 and 236.16 is: 353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.46 : 475.02 = 236.16 : x
  2. Step 2: Convert to fraction form
    317.46/475.02 = 236.16/x
  3. Step 3: Cross multiply
    317.46x = 475.02 × 236.16
  4. Step 4: Simplify right side
    317.46x = 112,180.72
  5. Step 5: Solve for x
    x = 112,180.72/317.46
  6. Step 6: Final answer
    x = 353.37

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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.