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Finding the Fourth Proportional to 464.67, 696.29 and 190.69

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Solution

The fourth proportional to 464.67, 696.29 and 190.69 is: 285.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.67 : 696.29 = 190.69 : x
  2. Step 2: Convert to fraction form
    464.67/696.29 = 190.69/x
  3. Step 3: Cross multiply
    464.67x = 696.29 × 190.69
  4. Step 4: Simplify right side
    464.67x = 132,772.85
  5. Step 5: Solve for x
    x = 132,772.85/464.67
  6. Step 6: Final answer
    x = 285.74

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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.