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Finding the Fourth Proportional to 1,236,739.20, 1,733,923.20 and 1,236,739.20

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Solution

The fourth proportional to 1,236,739.20, 1,733,923.20 and 1,236,739.20 is: 1,733,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,739.20 : 1,733,923.20 = 1,236,739.20 : x
  2. Step 2: Convert to fraction form
    1,236,739.20/1,733,923.20 = 1,236,739.20/x
  3. Step 3: Cross multiply
    1,236,739.20x = 1,733,923.20 × 1,236,739.20
  4. Step 4: Simplify right side
    1,236,739.20x = 2,144,410,791,229.44
  5. Step 5: Solve for x
    x = 2,144,410,791,229.44/1,236,739.20
  6. Step 6: Final answer
    x = 1,733,923.20

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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.