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Finding the Fourth Proportional to 3,313,019.94, 4,969,640.88 and 916,664.10

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Solution

The fourth proportional to 3,313,019.94, 4,969,640.88 and 916,664.10 is: 1,375,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313,019.94 : 4,969,640.88 = 916,664.10 : x
  2. Step 2: Convert to fraction form
    3,313,019.94/4,969,640.88 = 916,664.10/x
  3. Step 3: Cross multiply
    3,313,019.94x = 4,969,640.88 × 916,664.10
  4. Step 4: Simplify right side
    3,313,019.94x = 4,555,491,384,588.41
  5. Step 5: Solve for x
    x = 4,555,491,384,588.41/3,313,019.94
  6. Step 6: Final answer
    x = 1,375,026.85

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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.