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Finding the Fourth Proportional to 1,067.72, 1,473.36 and 595.58

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Solution

The fourth proportional to 1,067.72, 1,473.36 and 595.58 is: 821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.72 : 1,473.36 = 595.58 : x
  2. Step 2: Convert to fraction form
    1,067.72/1,473.36 = 595.58/x
  3. Step 3: Cross multiply
    1,067.72x = 1,473.36 × 595.58
  4. Step 4: Simplify right side
    1,067.72x = 877,503.75
  5. Step 5: Solve for x
    x = 877,503.75/1,067.72
  6. Step 6: Final answer
    x = 821.85

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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.