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Finding the Fourth Proportional to 499,760.25, 689,679.14 and 273,410.61

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Solution

The fourth proportional to 499,760.25, 689,679.14 and 273,410.61 is: 377,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,760.25 : 689,679.14 = 273,410.61 : x
  2. Step 2: Convert to fraction form
    499,760.25/689,679.14 = 273,410.61/x
  3. Step 3: Cross multiply
    499,760.25x = 689,679.14 × 273,410.61
  4. Step 4: Simplify right side
    499,760.25x = 188,565,593,004.62
  5. Step 5: Solve for x
    x = 188,565,593,004.62/499,760.25
  6. Step 6: Final answer
    x = 377,312.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.