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Finding the Fourth Proportional to 483,382.45, 667,086.71 and 330,740.79

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Solution

The fourth proportional to 483,382.45, 667,086.71 and 330,740.79 is: 456,435.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,382.45 : 667,086.71 = 330,740.79 : x
  2. Step 2: Convert to fraction form
    483,382.45/667,086.71 = 330,740.79/x
  3. Step 3: Cross multiply
    483,382.45x = 667,086.71 × 330,740.79
  4. Step 4: Simplify right side
    483,382.45x = 220,632,785,463.90
  5. Step 5: Solve for x
    x = 220,632,785,463.90/483,382.45
  6. Step 6: Final answer
    x = 456,435.24

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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.