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Finding the Fourth Proportional to 458.49, 632.74 and 262.06

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Solution

The fourth proportional to 458.49, 632.74 and 262.06 is: 361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.49 : 632.74 = 262.06 : x
  2. Step 2: Convert to fraction form
    458.49/632.74 = 262.06/x
  3. Step 3: Cross multiply
    458.49x = 632.74 × 262.06
  4. Step 4: Simplify right side
    458.49x = 165,814.53
  5. Step 5: Solve for x
    x = 165,814.53/458.49
  6. Step 6: Final answer
    x = 361.66

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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.