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Finding the Fourth Proportional to 376, 518.74 and 235.88

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Solution

The fourth proportional to 376, 518.74 and 235.88 is: 325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    376 : 518.74 = 235.88 : x
  2. Step 2: Convert to fraction form
    376/518.74 = 235.88/x
  3. Step 3: Cross multiply
    376x = 518.74 × 235.88
  4. Step 4: Simplify right side
    376x = 122,360.39
  5. Step 5: Solve for x
    x = 122,360.39/376
  6. Step 6: Final answer
    x = 325.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.