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Finding the Fourth Proportional to 609,183, 840,555.90 and 394,293.24

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Solution

The fourth proportional to 609,183, 840,555.90 and 394,293.24 is: 544,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,183 : 840,555.90 = 394,293.24 : x
  2. Step 2: Convert to fraction form
    609,183/840,555.90 = 394,293.24/x
  3. Step 3: Cross multiply
    609,183x = 840,555.90 × 394,293.24
  4. Step 4: Simplify right side
    609,183x = 331,425,509,212.12
  5. Step 5: Solve for x
    x = 331,425,509,212.12/609,183
  6. Step 6: Final answer
    x = 544,049.18

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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.