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Finding the Fourth Proportional to 1,231,938.80, 1,844,797.80 and 983,106.80

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Solution

The fourth proportional to 1,231,938.80, 1,844,797.80 and 983,106.80 is: 1,472,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,938.80 : 1,844,797.80 = 983,106.80 : x
  2. Step 2: Convert to fraction form
    1,231,938.80/1,844,797.80 = 983,106.80/x
  3. Step 3: Cross multiply
    1,231,938.80x = 1,844,797.80 × 983,106.80
  4. Step 4: Simplify right side
    1,231,938.80x = 1,813,633,261,805.04
  5. Step 5: Solve for x
    x = 1,813,633,261,805.04/1,231,938.80
  6. Step 6: Final answer
    x = 1,472,178.05

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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.