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Finding the Fourth Proportional to 481,803.76, 664,880.56 and 266,939.52

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Solution

The fourth proportional to 481,803.76, 664,880.56 and 266,939.52 is: 368,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,803.76 : 664,880.56 = 266,939.52 : x
  2. Step 2: Convert to fraction form
    481,803.76/664,880.56 = 266,939.52/x
  3. Step 3: Cross multiply
    481,803.76x = 664,880.56 × 266,939.52
  4. Step 4: Simplify right side
    481,803.76x = 177,482,897,543.73
  5. Step 5: Solve for x
    x = 177,482,897,543.73/481,803.76
  6. Step 6: Final answer
    x = 368,371.76

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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.