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Finding the Fourth Proportional to 1,180,900.22, 1,629,864.79 and 739,579.41

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Solution

The fourth proportional to 1,180,900.22, 1,629,864.79 and 739,579.41 is: 1,020,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,900.22 : 1,629,864.79 = 739,579.41 : x
  2. Step 2: Convert to fraction form
    1,180,900.22/1,629,864.79 = 739,579.41/x
  3. Step 3: Cross multiply
    1,180,900.22x = 1,629,864.79 × 739,579.41
  4. Step 4: Simplify right side
    1,180,900.22x = 1,205,414,437,919.03
  5. Step 5: Solve for x
    x = 1,205,414,437,919.03/1,180,900.22
  6. Step 6: Final answer
    x = 1,020,758.93

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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.