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Finding the Fourth Proportional to 499,517.32, 689,333.52 and 273,162.76

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Solution

The fourth proportional to 499,517.32, 689,333.52 and 273,162.76 is: 376,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,517.32 : 689,333.52 = 273,162.76 : x
  2. Step 2: Convert to fraction form
    499,517.32/689,333.52 = 273,162.76/x
  3. Step 3: Cross multiply
    499,517.32x = 689,333.52 × 273,162.76
  4. Step 4: Simplify right side
    499,517.32x = 188,300,246,883.72
  5. Step 5: Solve for x
    x = 188,300,246,883.72/499,517.32
  6. Step 6: Final answer
    x = 376,964.40

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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.