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Finding the Fourth Proportional to 467.27, 644.80 and 260.27

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Solution

The fourth proportional to 467.27, 644.80 and 260.27 is: 359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.27 : 644.80 = 260.27 : x
  2. Step 2: Convert to fraction form
    467.27/644.80 = 260.27/x
  3. Step 3: Cross multiply
    467.27x = 644.80 × 260.27
  4. Step 4: Simplify right side
    467.27x = 167,818.22
  5. Step 5: Solve for x
    x = 167,818.22/467.27
  6. Step 6: Final answer
    x = 359.15

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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.