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Finding the Fourth Proportional to 572.43, 789.96 and 336.24

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Solution

The fourth proportional to 572.43, 789.96 and 336.24 is: 464.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.43 : 789.96 = 336.24 : x
  2. Step 2: Convert to fraction form
    572.43/789.96 = 336.24/x
  3. Step 3: Cross multiply
    572.43x = 789.96 × 336.24
  4. Step 4: Simplify right side
    572.43x = 265,616.15
  5. Step 5: Solve for x
    x = 265,616.15/572.43
  6. Step 6: Final answer
    x = 464.02

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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.