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Finding the Fourth Proportional to 1,590.48, 2,193.21 and 1,067.22

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Solution

The fourth proportional to 1,590.48, 2,193.21 and 1,067.22 is: 1,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.48 : 2,193.21 = 1,067.22 : x
  2. Step 2: Convert to fraction form
    1,590.48/2,193.21 = 1,067.22/x
  3. Step 3: Cross multiply
    1,590.48x = 2,193.21 × 1,067.22
  4. Step 4: Simplify right side
    1,590.48x = 2,340,637.58
  5. Step 5: Solve for x
    x = 2,340,637.58/1,590.48
  6. Step 6: Final answer
    x = 1,471.65

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1.5x scale

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.