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Finding the Fourth Proportional to 967.76, 1,335.44 and 574.68

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Solution

The fourth proportional to 967.76, 1,335.44 and 574.68 is: 793.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.76 : 1,335.44 = 574.68 : x
  2. Step 2: Convert to fraction form
    967.76/1,335.44 = 574.68/x
  3. Step 3: Cross multiply
    967.76x = 1,335.44 × 574.68
  4. Step 4: Simplify right side
    967.76x = 767,450.66
  5. Step 5: Solve for x
    x = 767,450.66/967.76
  6. Step 6: Final answer
    x = 793.02

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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.