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Finding the Fourth Proportional to 1,198,458.02, 1,797,693.82 and 399,737.37

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Solution

The fourth proportional to 1,198,458.02, 1,797,693.82 and 399,737.37 is: 599,608.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,458.02 : 1,797,693.82 = 399,737.37 : x
  2. Step 2: Convert to fraction form
    1,198,458.02/1,797,693.82 = 399,737.37/x
  3. Step 3: Cross multiply
    1,198,458.02x = 1,797,693.82 × 399,737.37
  4. Step 4: Simplify right side
    1,198,458.02x = 718,605,405,414.06
  5. Step 5: Solve for x
    x = 718,605,405,414.06/1,198,458.02
  6. Step 6: Final answer
    x = 599,608.32

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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.