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Finding the Fourth Proportional to 1,067.48, 1,600.26 and 383.32

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Solution

The fourth proportional to 1,067.48, 1,600.26 and 383.32 is: 574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.48 : 1,600.26 = 383.32 : x
  2. Step 2: Convert to fraction form
    1,067.48/1,600.26 = 383.32/x
  3. Step 3: Cross multiply
    1,067.48x = 1,600.26 × 383.32
  4. Step 4: Simplify right side
    1,067.48x = 613,411.66
  5. Step 5: Solve for x
    x = 613,411.66/1,067.48
  6. Step 6: Final answer
    x = 574.64

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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.