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Finding the Fourth Proportional to 335.44, 464.88 and 330.32

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Solution

The fourth proportional to 335.44, 464.88 and 330.32 is: 457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.44 : 464.88 = 330.32 : x
  2. Step 2: Convert to fraction form
    335.44/464.88 = 330.32/x
  3. Step 3: Cross multiply
    335.44x = 464.88 × 330.32
  4. Step 4: Simplify right side
    335.44x = 153,559.16
  5. Step 5: Solve for x
    x = 153,559.16/335.44
  6. Step 6: Final answer
    x = 457.78

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.