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Finding the Fourth Proportional to 529, 793.74 and 255.04

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Solution

The fourth proportional to 529, 793.74 and 255.04 is: 382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    529 : 793.74 = 255.04 : x
  2. Step 2: Convert to fraction form
    529/793.74 = 255.04/x
  3. Step 3: Cross multiply
    529x = 793.74 × 255.04
  4. Step 4: Simplify right side
    529x = 202,435.45
  5. Step 5: Solve for x
    x = 202,435.45/529
  6. Step 6: Final answer
    x = 382.68

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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.