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Finding the Fourth Proportional to 264,993.30, 396,571.39 and 253,970.82

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Solution

The fourth proportional to 264,993.30, 396,571.39 and 253,970.82 is: 380,075.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,993.30 : 396,571.39 = 253,970.82 : x
  2. Step 2: Convert to fraction form
    264,993.30/396,571.39 = 253,970.82/x
  3. Step 3: Cross multiply
    264,993.30x = 396,571.39 × 253,970.82
  4. Step 4: Simplify right side
    264,993.30x = 100,717,561,106.84
  5. Step 5: Solve for x
    x = 100,717,561,106.84/264,993.30
  6. Step 6: Final answer
    x = 380,075.88

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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.