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Finding the Fourth Proportional to 359,343.60, 539,404.20 and 201,879.60

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Solution

The fourth proportional to 359,343.60, 539,404.20 and 201,879.60 is: 303,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,343.60 : 539,404.20 = 201,879.60 : x
  2. Step 2: Convert to fraction form
    359,343.60/539,404.20 = 201,879.60/x
  3. Step 3: Cross multiply
    359,343.60x = 539,404.20 × 201,879.60
  4. Step 4: Simplify right side
    359,343.60x = 108,894,704,134.32
  5. Step 5: Solve for x
    x = 108,894,704,134.32/359,343.60
  6. Step 6: Final answer
    x = 303,037.83

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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.