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Finding the Fourth Proportional to 738.24, 1,018.82 and 443.52

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Solution

The fourth proportional to 738.24, 1,018.82 and 443.52 is: 612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    738.24 : 1,018.82 = 443.52 : x
  2. Step 2: Convert to fraction form
    738.24/1,018.82 = 443.52/x
  3. Step 3: Cross multiply
    738.24x = 1,018.82 × 443.52
  4. Step 4: Simplify right side
    738.24x = 451,867.05
  5. Step 5: Solve for x
    x = 451,867.05/738.24
  6. Step 6: Final answer
    x = 612.09

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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.