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Finding the Fourth Proportional to 967.74, 1,335.04 and 574.54

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Solution

The fourth proportional to 967.74, 1,335.04 and 574.54 is: 792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.74 : 1,335.04 = 574.54 : x
  2. Step 2: Convert to fraction form
    967.74/1,335.04 = 574.54/x
  3. Step 3: Cross multiply
    967.74x = 1,335.04 × 574.54
  4. Step 4: Simplify right side
    967.74x = 767,033.88
  5. Step 5: Solve for x
    x = 767,033.88/967.74
  6. Step 6: Final answer
    x = 792.60

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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.