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Finding the Fourth Proportional to 499,548.38, 689,393.16 and 273,193.88

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Solution

The fourth proportional to 499,548.38, 689,393.16 and 273,193.88 is: 377,016.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,548.38 : 689,393.16 = 273,193.88 : x
  2. Step 2: Convert to fraction form
    499,548.38/689,393.16 = 273,193.88/x
  3. Step 3: Cross multiply
    499,548.38x = 689,393.16 × 273,193.88
  4. Step 4: Simplify right side
    499,548.38x = 188,337,988,778.90
  5. Step 5: Solve for x
    x = 188,337,988,778.90/499,548.38
  6. Step 6: Final answer
    x = 377,016.52

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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.