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Finding the Fourth Proportional to 533,759.56, 802,559.78 and 492,148.68

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Solution

The fourth proportional to 533,759.56, 802,559.78 and 492,148.68 is: 739,993.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,759.56 : 802,559.78 = 492,148.68 : x
  2. Step 2: Convert to fraction form
    533,759.56/802,559.78 = 492,148.68/x
  3. Step 3: Cross multiply
    533,759.56x = 802,559.78 × 492,148.68
  4. Step 4: Simplify right side
    533,759.56x = 394,978,736,348.09
  5. Step 5: Solve for x
    x = 394,978,736,348.09/533,759.56
  6. Step 6: Final answer
    x = 739,993.75

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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.