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Finding the Fourth Proportional to 467, 644.48 and 292.26

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Solution

The fourth proportional to 467, 644.48 and 292.26 is: 403.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    467 : 644.48 = 292.26 : x
  2. Step 2: Convert to fraction form
    467/644.48 = 292.26/x
  3. Step 3: Cross multiply
    467x = 644.48 × 292.26
  4. Step 4: Simplify right side
    467x = 188,355.72
  5. Step 5: Solve for x
    x = 188,355.72/467
  6. Step 6: Final answer
    x = 403.33

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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.