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Finding the Fourth Proportional to 792.37, 1,093.44 and 443.02

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Solution

The fourth proportional to 792.37, 1,093.44 and 443.02 is: 611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.37 : 1,093.44 = 443.02 : x
  2. Step 2: Convert to fraction form
    792.37/1,093.44 = 443.02/x
  3. Step 3: Cross multiply
    792.37x = 1,093.44 × 443.02
  4. Step 4: Simplify right side
    792.37x = 484,415.79
  5. Step 5: Solve for x
    x = 484,415.79/792.37
  6. Step 6: Final answer
    x = 611.35

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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.