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Finding the Fourth Proportional to 557,489.45, 836,520.20 and 273,174.66

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Solution

The fourth proportional to 557,489.45, 836,520.20 and 273,174.66 is: 409,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,489.45 : 836,520.20 = 273,174.66 : x
  2. Step 2: Convert to fraction form
    557,489.45/836,520.20 = 273,174.66/x
  3. Step 3: Cross multiply
    557,489.45x = 836,520.20 × 273,174.66
  4. Step 4: Simplify right side
    557,489.45x = 228,516,119,852.26
  5. Step 5: Solve for x
    x = 228,516,119,852.26/557,489.45
  6. Step 6: Final answer
    x = 409,902.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.