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Finding the Fourth Proportional to 458.46, 632.76 and 262.08

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Solution

The fourth proportional to 458.46, 632.76 and 262.08 is: 361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.46 : 632.76 = 262.08 : x
  2. Step 2: Convert to fraction form
    458.46/632.76 = 262.08/x
  3. Step 3: Cross multiply
    458.46x = 632.76 × 262.08
  4. Step 4: Simplify right side
    458.46x = 165,833.74
  5. Step 5: Solve for x
    x = 165,833.74/458.46
  6. Step 6: Final answer
    x = 361.72

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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.