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Finding the Fourth Proportional to 633,306.80, 949,960.20 and 159,993.52

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Solution

The fourth proportional to 633,306.80, 949,960.20 and 159,993.52 is: 239,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,306.80 : 949,960.20 = 159,993.52 : x
  2. Step 2: Convert to fraction form
    633,306.80/949,960.20 = 159,993.52/x
  3. Step 3: Cross multiply
    633,306.80x = 949,960.20 × 159,993.52
  4. Step 4: Simplify right side
    633,306.80x = 151,987,476,257.90
  5. Step 5: Solve for x
    x = 151,987,476,257.90/633,306.80
  6. Step 6: Final answer
    x = 239,990.28

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Double scale
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Similar ratio
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1.5x scale

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.