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Finding the Fourth Proportional to 328,272.20, 492,797.10 and 186,230.60

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Solution

The fourth proportional to 328,272.20, 492,797.10 and 186,230.60 is: 279,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,272.20 : 492,797.10 = 186,230.60 : x
  2. Step 2: Convert to fraction form
    328,272.20/492,797.10 = 186,230.60/x
  3. Step 3: Cross multiply
    328,272.20x = 492,797.10 × 186,230.60
  4. Step 4: Simplify right side
    328,272.20x = 91,773,899,611.26
  5. Step 5: Solve for x
    x = 91,773,899,611.26/328,272.20
  6. Step 6: Final answer
    x = 279,566.47

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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.