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Finding the Fourth Proportional to 906,993.60, 1,253,377.44 and 680,245.44

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Solution

The fourth proportional to 906,993.60, 1,253,377.44 and 680,245.44 is: 940,033.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,993.60 : 1,253,377.44 = 680,245.44 : x
  2. Step 2: Convert to fraction form
    906,993.60/1,253,377.44 = 680,245.44/x
  3. Step 3: Cross multiply
    906,993.60x = 1,253,377.44 × 680,245.44
  4. Step 4: Simplify right side
    906,993.60x = 852,604,288,158.87
  5. Step 5: Solve for x
    x = 852,604,288,158.87/906,993.60
  6. Step 6: Final answer
    x = 940,033.41

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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.