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Finding the Fourth Proportional to 574.47, 792.82 and 338.42

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Solution

The fourth proportional to 574.47, 792.82 and 338.42 is: 467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.47 : 792.82 = 338.42 : x
  2. Step 2: Convert to fraction form
    574.47/792.82 = 338.42/x
  3. Step 3: Cross multiply
    574.47x = 792.82 × 338.42
  4. Step 4: Simplify right side
    574.47x = 268,306.14
  5. Step 5: Solve for x
    x = 268,306.14/574.47
  6. Step 6: Final answer
    x = 467.05

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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.