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Finding the Fourth Proportional to 967.57, 1,335.59 and 574.59

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Solution

The fourth proportional to 967.57, 1,335.59 and 574.59 is: 793.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.57 : 1,335.59 = 574.59 : x
  2. Step 2: Convert to fraction form
    967.57/1,335.59 = 574.59/x
  3. Step 3: Cross multiply
    967.57x = 1,335.59 × 574.59
  4. Step 4: Simplify right side
    967.57x = 767,424.18
  5. Step 5: Solve for x
    x = 767,424.18/967.57
  6. Step 6: Final answer
    x = 793.15

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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.