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Finding the Fourth Proportional to 1,811,896.80, 2,710,846.80 and 1,182,040.80

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Solution

The fourth proportional to 1,811,896.80, 2,710,846.80 and 1,182,040.80 is: 1,768,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,896.80 : 2,710,846.80 = 1,182,040.80 : x
  2. Step 2: Convert to fraction form
    1,811,896.80/2,710,846.80 = 1,182,040.80/x
  3. Step 3: Cross multiply
    1,811,896.80x = 2,710,846.80 × 1,182,040.80
  4. Step 4: Simplify right side
    1,811,896.80x = 3,204,331,520,149.44
  5. Step 5: Solve for x
    x = 3,204,331,520,149.44/1,811,896.80
  6. Step 6: Final answer
    x = 1,768,495.60

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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.