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Finding the Fourth Proportional to 393,824.70, 590,882.85 and 379,244.70

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Solution

The fourth proportional to 393,824.70, 590,882.85 and 379,244.70 is: 569,007.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,824.70 : 590,882.85 = 379,244.70 : x
  2. Step 2: Convert to fraction form
    393,824.70/590,882.85 = 379,244.70/x
  3. Step 3: Cross multiply
    393,824.70x = 590,882.85 × 379,244.70
  4. Step 4: Simplify right side
    393,824.70x = 224,089,189,183.40
  5. Step 5: Solve for x
    x = 224,089,189,183.40/393,824.70
  6. Step 6: Final answer
    x = 569,007.45

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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.