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Finding the Fourth Proportional to 557,715.87, 834,507.09 and 333,198.45

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Solution

The fourth proportional to 557,715.87, 834,507.09 and 333,198.45 is: 498,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,715.87 : 834,507.09 = 333,198.45 : x
  2. Step 2: Convert to fraction form
    557,715.87/834,507.09 = 333,198.45/x
  3. Step 3: Cross multiply
    557,715.87x = 834,507.09 × 333,198.45
  4. Step 4: Simplify right side
    557,715.87x = 278,056,468,902.01
  5. Step 5: Solve for x
    x = 278,056,468,902.01/557,715.87
  6. Step 6: Final answer
    x = 498,562.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.