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Finding the Fourth Proportional to 967.88, 1,335.53 and 574.83

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Solution

The fourth proportional to 967.88, 1,335.53 and 574.83 is: 793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.88 : 1,335.53 = 574.83 : x
  2. Step 2: Convert to fraction form
    967.88/1,335.53 = 574.83/x
  3. Step 3: Cross multiply
    967.88x = 1,335.53 × 574.83
  4. Step 4: Simplify right side
    967.88x = 767,699.84
  5. Step 5: Solve for x
    x = 767,699.84/967.88
  6. Step 6: Final answer
    x = 793.18

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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.