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Finding the Fourth Proportional to 483,980.94, 667,910.01 and 266,206.45

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Solution

The fourth proportional to 483,980.94, 667,910.01 and 266,206.45 is: 367,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,980.94 : 667,910.01 = 266,206.45 : x
  2. Step 2: Convert to fraction form
    483,980.94/667,910.01 = 266,206.45/x
  3. Step 3: Cross multiply
    483,980.94x = 667,910.01 × 266,206.45
  4. Step 4: Simplify right side
    483,980.94x = 177,801,952,681.57
  5. Step 5: Solve for x
    x = 177,801,952,681.57/483,980.94
  6. Step 6: Final answer
    x = 367,373.87

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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.