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Finding the Fourth Proportional to 359,621.91, 539,049.21 and 270,600.06

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Solution

The fourth proportional to 359,621.91, 539,049.21 and 270,600.06 is: 405,611.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,621.91 : 539,049.21 = 270,600.06 : x
  2. Step 2: Convert to fraction form
    359,621.91/539,049.21 = 270,600.06/x
  3. Step 3: Cross multiply
    359,621.91x = 539,049.21 × 270,600.06
  4. Step 4: Simplify right side
    359,621.91x = 145,866,748,568.95
  5. Step 5: Solve for x
    x = 145,866,748,568.95/359,621.91
  6. Step 6: Final answer
    x = 405,611.41

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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.