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Finding the Fourth Proportional to 3,107,978.91, 4,662,635.40 and 1,760,786.91

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Solution

The fourth proportional to 3,107,978.91, 4,662,635.40 and 1,760,786.91 is: 2,641,558.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107,978.91 : 4,662,635.40 = 1,760,786.91 : x
  2. Step 2: Convert to fraction form
    3,107,978.91/4,662,635.40 = 1,760,786.91/x
  3. Step 3: Cross multiply
    3,107,978.91x = 4,662,635.40 × 1,760,786.91
  4. Step 4: Simplify right side
    3,107,978.91x = 8,209,907,378,422.61
  5. Step 5: Solve for x
    x = 8,209,907,378,422.61/3,107,978.91
  6. Step 6: Final answer
    x = 2,641,558.27

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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.