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Finding the Fourth Proportional to 674.63, 1,012.04 and 235.97

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Solution

The fourth proportional to 674.63, 1,012.04 and 235.97 is: 353.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.63 : 1,012.04 = 235.97 : x
  2. Step 2: Convert to fraction form
    674.63/1,012.04 = 235.97/x
  3. Step 3: Cross multiply
    674.63x = 1,012.04 × 235.97
  4. Step 4: Simplify right side
    674.63x = 238,809.90
  5. Step 5: Solve for x
    x = 238,809.90/674.63
  6. Step 6: Final answer
    x = 353.99

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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.