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Finding the Fourth Proportional to 573.28, 791.14 and 324.64

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Solution

The fourth proportional to 573.28, 791.14 and 324.64 is: 448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.28 : 791.14 = 324.64 : x
  2. Step 2: Convert to fraction form
    573.28/791.14 = 324.64/x
  3. Step 3: Cross multiply
    573.28x = 791.14 × 324.64
  4. Step 4: Simplify right side
    573.28x = 256,832.03
  5. Step 5: Solve for x
    x = 256,832.03/573.28
  6. Step 6: Final answer
    x = 448.01

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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.