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Finding the Fourth Proportional to 394,367, 591,650.28 and 110,057.50

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Solution

The fourth proportional to 394,367, 591,650.28 and 110,057.50 is: 165,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,367 : 591,650.28 = 110,057.50 : x
  2. Step 2: Convert to fraction form
    394,367/591,650.28 = 110,057.50/x
  3. Step 3: Cross multiply
    394,367x = 591,650.28 × 110,057.50
  4. Step 4: Simplify right side
    394,367x = 65,115,550,691.10
  5. Step 5: Solve for x
    x = 65,115,550,691.10/394,367
  6. Step 6: Final answer
    x = 165,114.10

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1.5x scale

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.