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Finding the Fourth Proportional to 439,231.80, 658,847.70 and 273,343.80

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Solution

The fourth proportional to 439,231.80, 658,847.70 and 273,343.80 is: 410,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,231.80 : 658,847.70 = 273,343.80 : x
  2. Step 2: Convert to fraction form
    439,231.80/658,847.70 = 273,343.80/x
  3. Step 3: Cross multiply
    439,231.80x = 658,847.70 × 273,343.80
  4. Step 4: Simplify right side
    439,231.80x = 180,091,933,939.26
  5. Step 5: Solve for x
    x = 180,091,933,939.26/439,231.80
  6. Step 6: Final answer
    x = 410,015.70

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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.