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Finding the Fourth Proportional to 937.60, 1,294.44 and 833.81

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Solution

The fourth proportional to 937.60, 1,294.44 and 833.81 is: 1,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.60 : 1,294.44 = 833.81 : x
  2. Step 2: Convert to fraction form
    937.60/1,294.44 = 833.81/x
  3. Step 3: Cross multiply
    937.60x = 1,294.44 × 833.81
  4. Step 4: Simplify right side
    937.60x = 1,079,317.02
  5. Step 5: Solve for x
    x = 1,079,317.02/937.60
  6. Step 6: Final answer
    x = 1,151.15

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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.