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Finding the Fourth Proportional to 359,993.20, 539,212.20 and 297,785.20

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Solution

The fourth proportional to 359,993.20, 539,212.20 and 297,785.20 is: 446,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,993.20 : 539,212.20 = 297,785.20 : x
  2. Step 2: Convert to fraction form
    359,993.20/539,212.20 = 297,785.20/x
  3. Step 3: Cross multiply
    359,993.20x = 539,212.20 × 297,785.20
  4. Step 4: Simplify right side
    359,993.20x = 160,569,412,819.44
  5. Step 5: Solve for x
    x = 160,569,412,819.44/359,993.20
  6. Step 6: Final answer
    x = 446,034.57

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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.