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Finding the Fourth Proportional to 1,410,661.72, 1,946,694.90 and 798,933.52

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Solution

The fourth proportional to 1,410,661.72, 1,946,694.90 and 798,933.52 is: 1,102,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410,661.72 : 1,946,694.90 = 798,933.52 : x
  2. Step 2: Convert to fraction form
    1,410,661.72/1,946,694.90 = 798,933.52/x
  3. Step 3: Cross multiply
    1,410,661.72x = 1,946,694.90 × 798,933.52
  4. Step 4: Simplify right side
    1,410,661.72x = 1,555,279,808,823.05
  5. Step 5: Solve for x
    x = 1,555,279,808,823.05/1,410,661.72
  6. Step 6: Final answer
    x = 1,102,517.91

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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.