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Finding the Fourth Proportional to 483,979.94, 667,908.63 and 266,205.45

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Solution

The fourth proportional to 483,979.94, 667,908.63 and 266,205.45 is: 367,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,979.94 : 667,908.63 = 266,205.45 : x
  2. Step 2: Convert to fraction form
    483,979.94/667,908.63 = 266,205.45/x
  3. Step 3: Cross multiply
    483,979.94x = 667,908.63 × 266,205.45
  4. Step 4: Simplify right side
    483,979.94x = 177,800,916,077.01
  5. Step 5: Solve for x
    x = 177,800,916,077.01/483,979.94
  6. Step 6: Final answer
    x = 367,372.49

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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.