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Finding the Fourth Proportional to 1,271,773.80, 1,907,660.70 and 1,100,531.70

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Solution

The fourth proportional to 1,271,773.80, 1,907,660.70 and 1,100,531.70 is: 1,650,797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,773.80 : 1,907,660.70 = 1,100,531.70 : x
  2. Step 2: Convert to fraction form
    1,271,773.80/1,907,660.70 = 1,100,531.70/x
  3. Step 3: Cross multiply
    1,271,773.80x = 1,907,660.70 × 1,100,531.70
  4. Step 4: Simplify right side
    1,271,773.80x = 2,099,441,073,194.19
  5. Step 5: Solve for x
    x = 2,099,441,073,194.19/1,271,773.80
  6. Step 6: Final answer
    x = 1,650,797.55

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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.