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Finding the Fourth Proportional to 793.10, 1,189.35 and 237.63

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Solution

The fourth proportional to 793.10, 1,189.35 and 237.63 is: 356.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.10 : 1,189.35 = 237.63 : x
  2. Step 2: Convert to fraction form
    793.10/1,189.35 = 237.63/x
  3. Step 3: Cross multiply
    793.10x = 1,189.35 × 237.63
  4. Step 4: Simplify right side
    793.10x = 282,625.24
  5. Step 5: Solve for x
    x = 282,625.24/793.10
  6. Step 6: Final answer
    x = 356.36

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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.