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Finding the Fourth Proportional to 499,616.88, 689,476.72 and 273,257.52

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Solution

The fourth proportional to 499,616.88, 689,476.72 and 273,257.52 is: 377,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,616.88 : 689,476.72 = 273,257.52 : x
  2. Step 2: Convert to fraction form
    499,616.88/689,476.72 = 273,257.52/x
  3. Step 3: Cross multiply
    499,616.88x = 689,476.72 × 273,257.52
  4. Step 4: Simplify right side
    499,616.88x = 188,404,698,604.93
  5. Step 5: Solve for x
    x = 188,404,698,604.93/499,616.88
  6. Step 6: Final answer
    x = 377,098.35

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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.