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Finding the Fourth Proportional to 383,694.30, 529,359.30 and 222,460.56

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Solution

The fourth proportional to 383,694.30, 529,359.30 and 222,460.56 is: 306,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,694.30 : 529,359.30 = 222,460.56 : x
  2. Step 2: Convert to fraction form
    383,694.30/529,359.30 = 222,460.56/x
  3. Step 3: Cross multiply
    383,694.30x = 529,359.30 × 222,460.56
  4. Step 4: Simplify right side
    383,694.30x = 117,761,566,319.21
  5. Step 5: Solve for x
    x = 117,761,566,319.21/383,694.30
  6. Step 6: Final answer
    x = 306,915.08

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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.