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Finding the Fourth Proportional to 672.24, 926.04 and 574.32

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Solution

The fourth proportional to 672.24, 926.04 and 574.32 is: 791.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.24 : 926.04 = 574.32 : x
  2. Step 2: Convert to fraction form
    672.24/926.04 = 574.32/x
  3. Step 3: Cross multiply
    672.24x = 926.04 × 574.32
  4. Step 4: Simplify right side
    672.24x = 531,843.29
  5. Step 5: Solve for x
    x = 531,843.29/672.24
  6. Step 6: Final answer
    x = 791.15

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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.