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Finding the Fourth Proportional to 499,601.25, 689,449.74 and 273,246.75

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Solution

The fourth proportional to 499,601.25, 689,449.74 and 273,246.75 is: 377,080.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,601.25 : 689,449.74 = 273,246.75 : x
  2. Step 2: Convert to fraction form
    499,601.25/689,449.74 = 273,246.75/x
  3. Step 3: Cross multiply
    499,601.25x = 689,449.74 × 273,246.75
  4. Step 4: Simplify right side
    499,601.25x = 188,389,900,743.35
  5. Step 5: Solve for x
    x = 188,389,900,743.35/499,601.25
  6. Step 6: Final answer
    x = 377,080.52

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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.