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Finding the Fourth Proportional to 464.63, 696.75 and 190.54

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Solution

The fourth proportional to 464.63, 696.75 and 190.54 is: 285.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.63 : 696.75 = 190.54 : x
  2. Step 2: Convert to fraction form
    464.63/696.75 = 190.54/x
  3. Step 3: Cross multiply
    464.63x = 696.75 × 190.54
  4. Step 4: Simplify right side
    464.63x = 132,758.75
  5. Step 5: Solve for x
    x = 132,758.75/464.63
  6. Step 6: Final answer
    x = 285.73

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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.