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Finding the Fourth Proportional to 1,661,150, 2,492,141.16 and 479,198

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Solution

The fourth proportional to 1,661,150, 2,492,141.16 and 479,198 is: 718,917.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,150 : 2,492,141.16 = 479,198 : x
  2. Step 2: Convert to fraction form
    1,661,150/2,492,141.16 = 479,198/x
  3. Step 3: Cross multiply
    1,661,150x = 2,492,141.16 × 479,198
  4. Step 4: Simplify right side
    1,661,150x = 1,194,229,059,589.68
  5. Step 5: Solve for x
    x = 1,194,229,059,589.68/1,661,150
  6. Step 6: Final answer
    x = 718,917.05

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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.