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Finding the Fourth Proportional to 667,226.14, 920,772.56 and 361,304.94

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Solution

The fourth proportional to 667,226.14, 920,772.56 and 361,304.94 is: 498,601.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,226.14 : 920,772.56 = 361,304.94 : x
  2. Step 2: Convert to fraction form
    667,226.14/920,772.56 = 361,304.94/x
  3. Step 3: Cross multiply
    667,226.14x = 920,772.56 × 361,304.94
  4. Step 4: Simplify right side
    667,226.14x = 332,679,674,544.45
  5. Step 5: Solve for x
    x = 332,679,674,544.45/667,226.14
  6. Step 6: Final answer
    x = 498,601.08

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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.