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Finding the Fourth Proportional to 481,500.87, 664,470.59 and 266,640.67

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Solution

The fourth proportional to 481,500.87, 664,470.59 and 266,640.67 is: 367,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,500.87 : 664,470.59 = 266,640.67 : x
  2. Step 2: Convert to fraction form
    481,500.87/664,470.59 = 266,640.67/x
  3. Step 3: Cross multiply
    481,500.87x = 664,470.59 × 266,640.67
  4. Step 4: Simplify right side
    481,500.87x = 177,174,883,312.90
  5. Step 5: Solve for x
    x = 177,174,883,312.90/481,500.87
  6. Step 6: Final answer
    x = 367,963.79

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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.