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Finding the Fourth Proportional to 265,790.58, 398,685.87 and 182,431.86

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Solution

The fourth proportional to 265,790.58, 398,685.87 and 182,431.86 is: 273,647.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,790.58 : 398,685.87 = 182,431.86 : x
  2. Step 2: Convert to fraction form
    265,790.58/398,685.87 = 182,431.86/x
  3. Step 3: Cross multiply
    265,790.58x = 398,685.87 × 182,431.86
  4. Step 4: Simplify right side
    265,790.58x = 72,733,004,819.82
  5. Step 5: Solve for x
    x = 72,733,004,819.82/265,790.58
  6. Step 6: Final answer
    x = 273,647.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.