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Finding the Fourth Proportional to 543,793.77, 815,773.64 and 277,408.94

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Solution

The fourth proportional to 543,793.77, 815,773.64 and 277,408.94 is: 416,155.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,793.77 : 815,773.64 = 277,408.94 : x
  2. Step 2: Convert to fraction form
    543,793.77/815,773.64 = 277,408.94/x
  3. Step 3: Cross multiply
    543,793.77x = 815,773.64 × 277,408.94
  4. Step 4: Simplify right side
    543,793.77x = 226,302,900,752.34
  5. Step 5: Solve for x
    x = 226,302,900,752.34/543,793.77
  6. Step 6: Final answer
    x = 416,155.74

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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.