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Finding the Fourth Proportional to 334.85, 462.21 and 236.66

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Solution

The fourth proportional to 334.85, 462.21 and 236.66 is: 326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.85 : 462.21 = 236.66 : x
  2. Step 2: Convert to fraction form
    334.85/462.21 = 236.66/x
  3. Step 3: Cross multiply
    334.85x = 462.21 × 236.66
  4. Step 4: Simplify right side
    334.85x = 109,386.62
  5. Step 5: Solve for x
    x = 109,386.62/334.85
  6. Step 6: Final answer
    x = 326.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.