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Finding the Fourth Proportional to 609,626.36, 914,105.46 and 188,785.40

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Solution

The fourth proportional to 609,626.36, 914,105.46 and 188,785.40 is: 283,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,626.36 : 914,105.46 = 188,785.40 : x
  2. Step 2: Convert to fraction form
    609,626.36/914,105.46 = 188,785.40/x
  3. Step 3: Cross multiply
    609,626.36x = 914,105.46 × 188,785.40
  4. Step 4: Simplify right side
    609,626.36x = 172,569,764,908.28
  5. Step 5: Solve for x
    x = 172,569,764,908.28/609,626.36
  6. Step 6: Final answer
    x = 283,074.64

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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.