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Finding the Fourth Proportional to 574.20, 792.18 and 534.24

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Solution

The fourth proportional to 574.20, 792.18 and 534.24 is: 737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.20 : 792.18 = 534.24 : x
  2. Step 2: Convert to fraction form
    574.20/792.18 = 534.24/x
  3. Step 3: Cross multiply
    574.20x = 792.18 × 534.24
  4. Step 4: Simplify right side
    574.20x = 423,214.24
  5. Step 5: Solve for x
    x = 423,214.24/574.20
  6. Step 6: Final answer
    x = 737.05

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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.