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Finding the Fourth Proportional to 0.74, 1.10 and 0.44

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Solution

The fourth proportional to 0.74, 1.10 and 0.44 is: 0.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.74 : 1.10 = 0.44 : x
  2. Step 2: Convert to fraction form
    0.74/1.10 = 0.44/x
  3. Step 3: Cross multiply
    0.74x = 1.10 × 0.44
  4. Step 4: Simplify right side
    0.74x = 0.48
  5. Step 5: Solve for x
    x = 0.48/0.74
  6. Step 6: Final answer
    x = 0.66

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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.