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Finding the Fourth Proportional to 312.22, 467.43 and 235.50

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Solution

The fourth proportional to 312.22, 467.43 and 235.50 is: 352.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.22 : 467.43 = 235.50 : x
  2. Step 2: Convert to fraction form
    312.22/467.43 = 235.50/x
  3. Step 3: Cross multiply
    312.22x = 467.43 × 235.50
  4. Step 4: Simplify right side
    312.22x = 110,079.77
  5. Step 5: Solve for x
    x = 110,079.77/312.22
  6. Step 6: Final answer
    x = 352.57

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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.