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Finding the Fourth Proportional to 794.46, 1,093.68 and 683.31

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Solution

The fourth proportional to 794.46, 1,093.68 and 683.31 is: 940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.46 : 1,093.68 = 683.31 : x
  2. Step 2: Convert to fraction form
    794.46/1,093.68 = 683.31/x
  3. Step 3: Cross multiply
    794.46x = 1,093.68 × 683.31
  4. Step 4: Simplify right side
    794.46x = 747,322.48
  5. Step 5: Solve for x
    x = 747,322.48/794.46
  6. Step 6: Final answer
    x = 940.67

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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.