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Finding the Fourth Proportional to 490,924.45, 677,471.46 and 276,059.93

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Solution

The fourth proportional to 490,924.45, 677,471.46 and 276,059.93 is: 380,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,924.45 : 677,471.46 = 276,059.93 : x
  2. Step 2: Convert to fraction form
    490,924.45/677,471.46 = 276,059.93/x
  3. Step 3: Cross multiply
    490,924.45x = 677,471.46 × 276,059.93
  4. Step 4: Simplify right side
    490,924.45x = 187,022,723,824.60
  5. Step 5: Solve for x
    x = 187,022,723,824.60/490,924.45
  6. Step 6: Final answer
    x = 380,960.30

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1.5x scale

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.