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Finding the Fourth Proportional to 1,067.80, 1,598.44 and 633.64

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Solution

The fourth proportional to 1,067.80, 1,598.44 and 633.64 is: 948.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.80 : 1,598.44 = 633.64 : x
  2. Step 2: Convert to fraction form
    1,067.80/1,598.44 = 633.64/x
  3. Step 3: Cross multiply
    1,067.80x = 1,598.44 × 633.64
  4. Step 4: Simplify right side
    1,067.80x = 1,012,835.52
  5. Step 5: Solve for x
    x = 1,012,835.52/1,067.80
  6. Step 6: Final answer
    x = 948.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.