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Finding the Fourth Proportional to 499,537.64, 689,352.42 and 273,182.44

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Solution

The fourth proportional to 499,537.64, 689,352.42 and 273,182.44 is: 376,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,537.64 : 689,352.42 = 273,182.44 : x
  2. Step 2: Convert to fraction form
    499,537.64/689,352.42 = 273,182.44/x
  3. Step 3: Cross multiply
    499,537.64x = 689,352.42 × 273,182.44
  4. Step 4: Simplify right side
    499,537.64x = 188,318,976,115.51
  5. Step 5: Solve for x
    x = 188,318,976,115.51/499,537.64
  6. Step 6: Final answer
    x = 376,986.56

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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.