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Finding the Fourth Proportional to 609,295.50, 840,633.39 and 394,600.14

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Solution

The fourth proportional to 609,295.50, 840,633.39 and 394,600.14 is: 544,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,295.50 : 840,633.39 = 394,600.14 : x
  2. Step 2: Convert to fraction form
    609,295.50/840,633.39 = 394,600.14/x
  3. Step 3: Cross multiply
    609,295.50x = 840,633.39 × 394,600.14
  4. Step 4: Simplify right side
    609,295.50x = 331,714,053,382.68
  5. Step 5: Solve for x
    x = 331,714,053,382.68/609,295.50
  6. Step 6: Final answer
    x = 544,422.29

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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.