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Finding the Fourth Proportional to 383,476.43, 529,236.84 and 230,564.43

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Solution

The fourth proportional to 383,476.43, 529,236.84 and 230,564.43 is: 318,202.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,476.43 : 529,236.84 = 230,564.43 : x
  2. Step 2: Convert to fraction form
    383,476.43/529,236.84 = 230,564.43/x
  3. Step 3: Cross multiply
    383,476.43x = 529,236.84 × 230,564.43
  4. Step 4: Simplify right side
    383,476.43x = 122,023,190,349.60
  5. Step 5: Solve for x
    x = 122,023,190,349.60/383,476.43
  6. Step 6: Final answer
    x = 318,202.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.