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Finding the Fourth Proportional to 1,993,769.64, 2,751,366.89 and 1,134,311.45

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Solution

The fourth proportional to 1,993,769.64, 2,751,366.89 and 1,134,311.45 is: 1,565,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,769.64 : 2,751,366.89 = 1,134,311.45 : x
  2. Step 2: Convert to fraction form
    1,993,769.64/2,751,366.89 = 1,134,311.45/x
  3. Step 3: Cross multiply
    1,993,769.64x = 2,751,366.89 × 1,134,311.45
  4. Step 4: Simplify right side
    1,993,769.64x = 3,120,906,955,556.84
  5. Step 5: Solve for x
    x = 3,120,906,955,556.84/1,993,769.64
  6. Step 6: Final answer
    x = 1,565,329.76

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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.