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Finding the Fourth Proportional to 481,393.74, 664,328.61 and 266,537.58

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Solution

The fourth proportional to 481,393.74, 664,328.61 and 266,537.58 is: 367,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,393.74 : 664,328.61 = 266,537.58 : x
  2. Step 2: Convert to fraction form
    481,393.74/664,328.61 = 266,537.58/x
  3. Step 3: Cross multiply
    481,393.74x = 664,328.61 × 266,537.58
  4. Step 4: Simplify right side
    481,393.74x = 177,068,540,034.16
  5. Step 5: Solve for x
    x = 177,068,540,034.16/481,393.74
  6. Step 6: Final answer
    x = 367,824.77

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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.