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Finding the Fourth Proportional to 353,096.40, 529,644.60 and 203,797.20

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Solution

The fourth proportional to 353,096.40, 529,644.60 and 203,797.20 is: 305,695.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,096.40 : 529,644.60 = 203,797.20 : x
  2. Step 2: Convert to fraction form
    353,096.40/529,644.60 = 203,797.20/x
  3. Step 3: Cross multiply
    353,096.40x = 529,644.60 × 203,797.20
  4. Step 4: Simplify right side
    353,096.40x = 107,940,086,475.12
  5. Step 5: Solve for x
    x = 107,940,086,475.12/353,096.40
  6. Step 6: Final answer
    x = 305,695.80

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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.