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Finding the Fourth Proportional to 500,171.01, 690,236 and 273,816.51

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Solution

The fourth proportional to 500,171.01, 690,236 and 273,816.51 is: 377,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,171.01 : 690,236 = 273,816.51 : x
  2. Step 2: Convert to fraction form
    500,171.01/690,236 = 273,816.51/x
  3. Step 3: Cross multiply
    500,171.01x = 690,236 × 273,816.51
  4. Step 4: Simplify right side
    500,171.01x = 188,998,012,596.36
  5. Step 5: Solve for x
    x = 188,998,012,596.36/500,171.01
  6. Step 6: Final answer
    x = 377,866.79

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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.