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Finding the Fourth Proportional to 467.16, 644.74 and 292.52

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Solution

The fourth proportional to 467.16, 644.74 and 292.52 is: 403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.16 : 644.74 = 292.52 : x
  2. Step 2: Convert to fraction form
    467.16/644.74 = 292.52/x
  3. Step 3: Cross multiply
    467.16x = 644.74 × 292.52
  4. Step 4: Simplify right side
    467.16x = 188,599.34
  5. Step 5: Solve for x
    x = 188,599.34/467.16
  6. Step 6: Final answer
    x = 403.71

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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.