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Finding the Fourth Proportional to 481,254.71, 664,123.44 and 266,390.15

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Solution

The fourth proportional to 481,254.71, 664,123.44 and 266,390.15 is: 367,613.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,254.71 : 664,123.44 = 266,390.15 : x
  2. Step 2: Convert to fraction form
    481,254.71/664,123.44 = 266,390.15/x
  3. Step 3: Cross multiply
    481,254.71x = 664,123.44 × 266,390.15
  4. Step 4: Simplify right side
    481,254.71x = 176,915,942,800.12
  5. Step 5: Solve for x
    x = 176,915,942,800.12/481,254.71
  6. Step 6: Final answer
    x = 367,613.95

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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.