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Finding the Fourth Proportional to 793.80, 1,095.39 and 462.24

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Solution

The fourth proportional to 793.80, 1,095.39 and 462.24 is: 637.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.80 : 1,095.39 = 462.24 : x
  2. Step 2: Convert to fraction form
    793.80/1,095.39 = 462.24/x
  3. Step 3: Cross multiply
    793.80x = 1,095.39 × 462.24
  4. Step 4: Simplify right side
    793.80x = 506,333.07
  5. Step 5: Solve for x
    x = 506,333.07/793.80
  6. Step 6: Final answer
    x = 637.86

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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.