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Finding the Fourth Proportional to 467.06, 644.55 and 292.42

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Solution

The fourth proportional to 467.06, 644.55 and 292.42 is: 403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.06 : 644.55 = 292.42 : x
  2. Step 2: Convert to fraction form
    467.06/644.55 = 292.42/x
  3. Step 3: Cross multiply
    467.06x = 644.55 × 292.42
  4. Step 4: Simplify right side
    467.06x = 188,477.70
  5. Step 5: Solve for x
    x = 188,477.70/467.06
  6. Step 6: Final answer
    x = 403.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.