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Finding the Fourth Proportional to 793.48, 1,092.18 and 572.08

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Solution

The fourth proportional to 793.48, 1,092.18 and 572.08 is: 787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.48 : 1,092.18 = 572.08 : x
  2. Step 2: Convert to fraction form
    793.48/1,092.18 = 572.08/x
  3. Step 3: Cross multiply
    793.48x = 1,092.18 × 572.08
  4. Step 4: Simplify right side
    793.48x = 624,814.33
  5. Step 5: Solve for x
    x = 624,814.33/793.48
  6. Step 6: Final answer
    x = 787.44

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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.