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Finding the Fourth Proportional to 0.46, 0.68 and 0.44

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Solution

The fourth proportional to 0.46, 0.68 and 0.44 is: 0.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.46 : 0.68 = 0.44 : x
  2. Step 2: Convert to fraction form
    0.46/0.68 = 0.44/x
  3. Step 3: Cross multiply
    0.46x = 0.68 × 0.44
  4. Step 4: Simplify right side
    0.46x = 0.30
  5. Step 5: Solve for x
    x = 0.30/0.46
  6. Step 6: Final answer
    x = 0.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.