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Finding the Fourth Proportional to 466, 642.92 and 335.20

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Solution

The fourth proportional to 466, 642.92 and 335.20 is: 462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    466 : 642.92 = 335.20 : x
  2. Step 2: Convert to fraction form
    466/642.92 = 335.20/x
  3. Step 3: Cross multiply
    466x = 642.92 × 335.20
  4. Step 4: Simplify right side
    466x = 215,506.78
  5. Step 5: Solve for x
    x = 215,506.78/466
  6. Step 6: Final answer
    x = 462.46

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Why These Related Problems?

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