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Finding the Fourth Proportional to 1,067.08, 1,472.70 and 601.36

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Solution

The fourth proportional to 1,067.08, 1,472.70 and 601.36 is: 829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.08 : 1,472.70 = 601.36 : x
  2. Step 2: Convert to fraction form
    1,067.08/1,472.70 = 601.36/x
  3. Step 3: Cross multiply
    1,067.08x = 1,472.70 × 601.36
  4. Step 4: Simplify right side
    1,067.08x = 885,622.87
  5. Step 5: Solve for x
    x = 885,622.87/1,067.08
  6. Step 6: Final answer
    x = 829.95

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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.