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Finding the Fourth Proportional to 502,820.56, 693,904.24 and 273,390.96

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Solution

The fourth proportional to 502,820.56, 693,904.24 and 273,390.96 is: 377,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,820.56 : 693,904.24 = 273,390.96 : x
  2. Step 2: Convert to fraction form
    502,820.56/693,904.24 = 273,390.96/x
  3. Step 3: Cross multiply
    502,820.56x = 693,904.24 × 273,390.96
  4. Step 4: Simplify right side
    502,820.56x = 189,707,146,321.67
  5. Step 5: Solve for x
    x = 189,707,146,321.67/502,820.56
  6. Step 6: Final answer
    x = 377,285.98

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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.