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Finding the Fourth Proportional to 792.34, 1,093.43 and 443.03

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Solution

The fourth proportional to 792.34, 1,093.43 and 443.03 is: 611.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.34 : 1,093.43 = 443.03 : x
  2. Step 2: Convert to fraction form
    792.34/1,093.43 = 443.03/x
  3. Step 3: Cross multiply
    792.34x = 1,093.43 × 443.03
  4. Step 4: Simplify right side
    792.34x = 484,422.29
  5. Step 5: Solve for x
    x = 484,422.29/792.34
  6. Step 6: Final answer
    x = 611.38

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Double scale
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1.5x scale

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.