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Finding the Fourth Proportional to 417,660.87, 576,372.40 and 226,674.31

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Solution

The fourth proportional to 417,660.87, 576,372.40 and 226,674.31 is: 312,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,660.87 : 576,372.40 = 226,674.31 : x
  2. Step 2: Convert to fraction form
    417,660.87/576,372.40 = 226,674.31/x
  3. Step 3: Cross multiply
    417,660.87x = 576,372.40 × 226,674.31
  4. Step 4: Simplify right side
    417,660.87x = 130,648,816,073.04
  5. Step 5: Solve for x
    x = 130,648,816,073.04/417,660.87
  6. Step 6: Final answer
    x = 312,810.76

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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.