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Finding the Fourth Proportional to 273,611.52, 411,074.88 and 258,505.92

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Solution

The fourth proportional to 273,611.52, 411,074.88 and 258,505.92 is: 388,380.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,611.52 : 411,074.88 = 258,505.92 : x
  2. Step 2: Convert to fraction form
    273,611.52/411,074.88 = 258,505.92/x
  3. Step 3: Cross multiply
    273,611.52x = 411,074.88 × 258,505.92
  4. Step 4: Simplify right side
    273,611.52x = 106,265,290,043.29
  5. Step 5: Solve for x
    x = 106,265,290,043.29/273,611.52
  6. Step 6: Final answer
    x = 388,380.18

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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.