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Finding the Fourth Proportional to 984,268.80, 1,381,708.80 and 984,268.80

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Solution

The fourth proportional to 984,268.80, 1,381,708.80 and 984,268.80 is: 1,381,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,268.80 : 1,381,708.80 = 984,268.80 : x
  2. Step 2: Convert to fraction form
    984,268.80/1,381,708.80 = 984,268.80/x
  3. Step 3: Cross multiply
    984,268.80x = 1,381,708.80 × 984,268.80
  4. Step 4: Simplify right side
    984,268.80x = 1,359,972,862,525.44
  5. Step 5: Solve for x
    x = 1,359,972,862,525.44/984,268.80
  6. Step 6: Final answer
    x = 1,381,708.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.