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Finding the Fourth Proportional to 481,767.80, 664,785.76 and 266,854.56

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Solution

The fourth proportional to 481,767.80, 664,785.76 and 266,854.56 is: 368,229.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,767.80 : 664,785.76 = 266,854.56 : x
  2. Step 2: Convert to fraction form
    481,767.80/664,785.76 = 266,854.56/x
  3. Step 3: Cross multiply
    481,767.80x = 664,785.76 × 266,854.56
  4. Step 4: Simplify right side
    481,767.80x = 177,401,111,479.07
  5. Step 5: Solve for x
    x = 177,401,111,479.07/481,767.80
  6. Step 6: Final answer
    x = 368,229.49

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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.