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Finding the Fourth Proportional to 293.12, 404.44 and 223.26

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Solution

The fourth proportional to 293.12, 404.44 and 223.26 is: 308.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.12 : 404.44 = 223.26 : x
  2. Step 2: Convert to fraction form
    293.12/404.44 = 223.26/x
  3. Step 3: Cross multiply
    293.12x = 404.44 × 223.26
  4. Step 4: Simplify right side
    293.12x = 90,294.46
  5. Step 5: Solve for x
    x = 90,294.46/293.12
  6. Step 6: Final answer
    x = 308.05

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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.