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Finding the Fourth Proportional to 458.66, 632.76 and 262.13

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Solution

The fourth proportional to 458.66, 632.76 and 262.13 is: 361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.66 : 632.76 = 262.13 : x
  2. Step 2: Convert to fraction form
    458.66/632.76 = 262.13/x
  3. Step 3: Cross multiply
    458.66x = 632.76 × 262.13
  4. Step 4: Simplify right side
    458.66x = 165,862.22
  5. Step 5: Solve for x
    x = 165,862.22/458.66
  6. Step 6: Final answer
    x = 361.63

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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.