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Finding the Fourth Proportional to 958.43, 1,437.69 and 833.99

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Solution

The fourth proportional to 958.43, 1,437.69 and 833.99 is: 1,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.43 : 1,437.69 = 833.99 : x
  2. Step 2: Convert to fraction form
    958.43/1,437.69 = 833.99/x
  3. Step 3: Cross multiply
    958.43x = 1,437.69 × 833.99
  4. Step 4: Simplify right side
    958.43x = 1,199,019.08
  5. Step 5: Solve for x
    x = 1,199,019.08/958.43
  6. Step 6: Final answer
    x = 1,251.02

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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.