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Finding the Fourth Proportional to 499,415.92, 689,193.97 and 273,061.42

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Solution

The fourth proportional to 499,415.92, 689,193.97 and 273,061.42 is: 376,824.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,415.92 : 689,193.97 = 273,061.42 : x
  2. Step 2: Convert to fraction form
    499,415.92/689,193.97 = 273,061.42/x
  3. Step 3: Cross multiply
    499,415.92x = 689,193.97 × 273,061.42
  4. Step 4: Simplify right side
    499,415.92x = 188,192,281,698.00
  5. Step 5: Solve for x
    x = 188,192,281,698.00/499,415.92
  6. Step 6: Final answer
    x = 376,824.76

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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.