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Finding the Fourth Proportional to 1,067.75, 1,473.59 and 602.09

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Solution

The fourth proportional to 1,067.75, 1,473.59 and 602.09 is: 830.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.75 : 1,473.59 = 602.09 : x
  2. Step 2: Convert to fraction form
    1,067.75/1,473.59 = 602.09/x
  3. Step 3: Cross multiply
    1,067.75x = 1,473.59 × 602.09
  4. Step 4: Simplify right side
    1,067.75x = 887,230.79
  5. Step 5: Solve for x
    x = 887,230.79/1,067.75
  6. Step 6: Final answer
    x = 830.93

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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.