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Finding the Fourth Proportional to 3,470,511.48, 4,789,272.48 and 1,999,879.74

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Solution

The fourth proportional to 3,470,511.48, 4,789,272.48 and 1,999,879.74 is: 2,759,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470,511.48 : 4,789,272.48 = 1,999,879.74 : x
  2. Step 2: Convert to fraction form
    3,470,511.48/4,789,272.48 = 1,999,879.74/x
  3. Step 3: Cross multiply
    3,470,511.48x = 4,789,272.48 × 1,999,879.74
  4. Step 4: Simplify right side
    3,470,511.48x = 9,577,969,002,091.56
  5. Step 5: Solve for x
    x = 9,577,969,002,091.56/3,470,511.48
  6. Step 6: Final answer
    x = 2,759,814.82

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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.