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Finding the Fourth Proportional to 553,797.67, 764,310.31 and 324,442.46

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Solution

The fourth proportional to 553,797.67, 764,310.31 and 324,442.46 is: 447,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,797.67 : 764,310.31 = 324,442.46 : x
  2. Step 2: Convert to fraction form
    553,797.67/764,310.31 = 324,442.46/x
  3. Step 3: Cross multiply
    553,797.67x = 764,310.31 × 324,442.46
  4. Step 4: Simplify right side
    553,797.67x = 247,974,711,736.00
  5. Step 5: Solve for x
    x = 247,974,711,736.00/553,797.67
  6. Step 6: Final answer
    x = 447,771.32

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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.