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Finding the Fourth Proportional to 496, 744 and 187.84

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Solution

The fourth proportional to 496, 744 and 187.84 is: 281.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    496 : 744 = 187.84 : x
  2. Step 2: Convert to fraction form
    496/744 = 187.84/x
  3. Step 3: Cross multiply
    496x = 744 × 187.84
  4. Step 4: Simplify right side
    496x = 139,752.96
  5. Step 5: Solve for x
    x = 139,752.96/496
  6. Step 6: Final answer
    x = 281.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.