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Finding the Fourth Proportional to 294.48, 441 and 172.44

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Solution

The fourth proportional to 294.48, 441 and 172.44 is: 258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.48 : 441 = 172.44 : x
  2. Step 2: Convert to fraction form
    294.48/441 = 172.44/x
  3. Step 3: Cross multiply
    294.48x = 441 × 172.44
  4. Step 4: Simplify right side
    294.48x = 76,046.04
  5. Step 5: Solve for x
    x = 76,046.04/294.48
  6. Step 6: Final answer
    x = 258.24

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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.