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Finding the Fourth Proportional to 509,382.44, 764,193.18 and 500,919.56

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Solution

The fourth proportional to 509,382.44, 764,193.18 and 500,919.56 is: 751,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,382.44 : 764,193.18 = 500,919.56 : x
  2. Step 2: Convert to fraction form
    509,382.44/764,193.18 = 500,919.56/x
  3. Step 3: Cross multiply
    509,382.44x = 764,193.18 × 500,919.56
  4. Step 4: Simplify right side
    509,382.44x = 382,799,311,480.60
  5. Step 5: Solve for x
    x = 382,799,311,480.60/509,382.44
  6. Step 6: Final answer
    x = 751,496.87

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1.5x scale

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.