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Finding the Fourth Proportional to 5,322,759.48, 7,984,139.38 and 1,679,858.55

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Solution

The fourth proportional to 5,322,759.48, 7,984,139.38 and 1,679,858.55 is: 2,519,787.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322,759.48 : 7,984,139.38 = 1,679,858.55 : x
  2. Step 2: Convert to fraction form
    5,322,759.48/7,984,139.38 = 1,679,858.55/x
  3. Step 3: Cross multiply
    5,322,759.48x = 7,984,139.38 × 1,679,858.55
  4. Step 4: Simplify right side
    5,322,759.48x = 13,412,224,797,685.05
  5. Step 5: Solve for x
    x = 13,412,224,797,685.05/5,322,759.48
  6. Step 6: Final answer
    x = 2,519,787.87

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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.