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Finding the Fourth Proportional to 2,811,872.80, 4,214,698.80 and 1,550,605.60

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Solution

The fourth proportional to 2,811,872.80, 4,214,698.80 and 1,550,605.60 is: 2,324,193.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,872.80 : 4,214,698.80 = 1,550,605.60 : x
  2. Step 2: Convert to fraction form
    2,811,872.80/4,214,698.80 = 1,550,605.60/x
  3. Step 3: Cross multiply
    2,811,872.80x = 4,214,698.80 × 1,550,605.60
  4. Step 4: Simplify right side
    2,811,872.80x = 6,535,335,561,593.28
  5. Step 5: Solve for x
    x = 6,535,335,561,593.28/2,811,872.80
  6. Step 6: Final answer
    x = 2,324,193.17

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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.