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Finding the Fourth Proportional to 958.35, 1,322.37 and 833.91

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Solution

The fourth proportional to 958.35, 1,322.37 and 833.91 is: 1,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.35 : 1,322.37 = 833.91 : x
  2. Step 2: Convert to fraction form
    958.35/1,322.37 = 833.91/x
  3. Step 3: Cross multiply
    958.35x = 1,322.37 × 833.91
  4. Step 4: Simplify right side
    958.35x = 1,102,737.57
  5. Step 5: Solve for x
    x = 1,102,737.57/958.35
  6. Step 6: Final answer
    x = 1,150.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.