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Finding the Fourth Proportional to 609,183.50, 840,556.59 and 394,293.74

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Solution

The fourth proportional to 609,183.50, 840,556.59 and 394,293.74 is: 544,049.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,183.50 : 840,556.59 = 394,293.74 : x
  2. Step 2: Convert to fraction form
    609,183.50/840,556.59 = 394,293.74/x
  3. Step 3: Cross multiply
    609,183.50x = 840,556.59 × 394,293.74
  4. Step 4: Simplify right side
    609,183.50x = 331,426,201,552.75
  5. Step 5: Solve for x
    x = 331,426,201,552.75/609,183.50
  6. Step 6: Final answer
    x = 544,049.87

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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.