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Finding the Fourth Proportional to 509,969.70, 764,954.55 and 454,857.30

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Solution

The fourth proportional to 509,969.70, 764,954.55 and 454,857.30 is: 682,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,969.70 : 764,954.55 = 454,857.30 : x
  2. Step 2: Convert to fraction form
    509,969.70/764,954.55 = 454,857.30/x
  3. Step 3: Cross multiply
    509,969.70x = 764,954.55 × 454,857.30
  4. Step 4: Simplify right side
    509,969.70x = 347,945,161,235.72
  5. Step 5: Solve for x
    x = 347,945,161,235.72/509,969.70
  6. Step 6: Final answer
    x = 682,285.95

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Similar ratio
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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.