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Finding the Fourth Proportional to 363,136.40, 543,629.40 and 270,054.80

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Solution

The fourth proportional to 363,136.40, 543,629.40 and 270,054.80 is: 404,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,136.40 : 543,629.40 = 270,054.80 : x
  2. Step 2: Convert to fraction form
    363,136.40/543,629.40 = 270,054.80/x
  3. Step 3: Cross multiply
    363,136.40x = 543,629.40 × 270,054.80
  4. Step 4: Simplify right side
    363,136.40x = 146,809,728,891.12
  5. Step 5: Solve for x
    x = 146,809,728,891.12/363,136.40
  6. Step 6: Final answer
    x = 404,282.60

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1.5x scale

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.