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Finding the Fourth Proportional to 467.13, 644.66 and 260.13

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Solution

The fourth proportional to 467.13, 644.66 and 260.13 is: 358.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.13 : 644.66 = 260.13 : x
  2. Step 2: Convert to fraction form
    467.13/644.66 = 260.13/x
  3. Step 3: Cross multiply
    467.13x = 644.66 × 260.13
  4. Step 4: Simplify right side
    467.13x = 167,695.41
  5. Step 5: Solve for x
    x = 167,695.41/467.13
  6. Step 6: Final answer
    x = 358.99

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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.