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Finding the Fourth Proportional to 930.44, 1,394.04 and 467.12

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Solution

The fourth proportional to 930.44, 1,394.04 and 467.12 is: 699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    930.44 : 1,394.04 = 467.12 : x
  2. Step 2: Convert to fraction form
    930.44/1,394.04 = 467.12/x
  3. Step 3: Cross multiply
    930.44x = 1,394.04 × 467.12
  4. Step 4: Simplify right side
    930.44x = 651,183.96
  5. Step 5: Solve for x
    x = 651,183.96/930.44
  6. Step 6: Final answer
    x = 699.87

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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.