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Finding the Fourth Proportional to 2,734,202.40, 4,101,610.80 and 840,928.80

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Solution

The fourth proportional to 2,734,202.40, 4,101,610.80 and 840,928.80 is: 1,261,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734,202.40 : 4,101,610.80 = 840,928.80 : x
  2. Step 2: Convert to fraction form
    2,734,202.40/4,101,610.80 = 840,928.80/x
  3. Step 3: Cross multiply
    2,734,202.40x = 4,101,610.80 × 840,928.80
  4. Step 4: Simplify right side
    2,734,202.40x = 3,449,162,648,111.04
  5. Step 5: Solve for x
    x = 3,449,162,648,111.04/2,734,202.40
  6. Step 6: Final answer
    x = 1,261,487.68

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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.