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Finding the Fourth Proportional to 958.48, 1,436.46 and 850.48

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Solution

The fourth proportional to 958.48, 1,436.46 and 850.48 is: 1,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.48 : 1,436.46 = 850.48 : x
  2. Step 2: Convert to fraction form
    958.48/1,436.46 = 850.48/x
  3. Step 3: Cross multiply
    958.48x = 1,436.46 × 850.48
  4. Step 4: Simplify right side
    958.48x = 1,221,680.50
  5. Step 5: Solve for x
    x = 1,221,680.50/958.48
  6. Step 6: Final answer
    x = 1,274.60

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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.