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Finding the Fourth Proportional to 967.19, 1,333.72 and 574.14

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Solution

The fourth proportional to 967.19, 1,333.72 and 574.14 is: 791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.19 : 1,333.72 = 574.14 : x
  2. Step 2: Convert to fraction form
    967.19/1,333.72 = 574.14/x
  3. Step 3: Cross multiply
    967.19x = 1,333.72 × 574.14
  4. Step 4: Simplify right side
    967.19x = 765,739.13
  5. Step 5: Solve for x
    x = 765,739.13/967.19
  6. Step 6: Final answer
    x = 791.72

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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.