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Finding the Fourth Proportional to 499,756.06, 689,662.65 and 273,401.56

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Solution

The fourth proportional to 499,756.06, 689,662.65 and 273,401.56 is: 377,293.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,756.06 : 689,662.65 = 273,401.56 : x
  2. Step 2: Convert to fraction form
    499,756.06/689,662.65 = 273,401.56/x
  3. Step 3: Cross multiply
    499,756.06x = 689,662.65 × 273,401.56
  4. Step 4: Simplify right side
    499,756.06x = 188,554,844,383.73
  5. Step 5: Solve for x
    x = 188,554,844,383.73/499,756.06
  6. Step 6: Final answer
    x = 377,293.76

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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.