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Finding the Fourth Proportional to 481,113.69, 663,957.73 and 266,253.83

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Solution

The fourth proportional to 481,113.69, 663,957.73 and 266,253.83 is: 367,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,113.69 : 663,957.73 = 266,253.83 : x
  2. Step 2: Convert to fraction form
    481,113.69/663,957.73 = 266,253.83/x
  3. Step 3: Cross multiply
    481,113.69x = 663,957.73 × 266,253.83
  4. Step 4: Simplify right side
    481,113.69x = 176,781,286,954.93
  5. Step 5: Solve for x
    x = 176,781,286,954.93/481,113.69
  6. Step 6: Final answer
    x = 367,441.81

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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.