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Finding the Fourth Proportional to 334.26, 461.48 and 223.90

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Solution

The fourth proportional to 334.26, 461.48 and 223.90 is: 309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.26 : 461.48 = 223.90 : x
  2. Step 2: Convert to fraction form
    334.26/461.48 = 223.90/x
  3. Step 3: Cross multiply
    334.26x = 461.48 × 223.90
  4. Step 4: Simplify right side
    334.26x = 103,325.37
  5. Step 5: Solve for x
    x = 103,325.37/334.26
  6. Step 6: Final answer
    x = 309.12

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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.