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Finding the Fourth Proportional to 361.22, 498.33 and 236.84

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Solution

The fourth proportional to 361.22, 498.33 and 236.84 is: 326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.22 : 498.33 = 236.84 : x
  2. Step 2: Convert to fraction form
    361.22/498.33 = 236.84/x
  3. Step 3: Cross multiply
    361.22x = 498.33 × 236.84
  4. Step 4: Simplify right side
    361.22x = 118,024.48
  5. Step 5: Solve for x
    x = 118,024.48/361.22
  6. Step 6: Final answer
    x = 326.74

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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.