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Finding the Fourth Proportional to 378,476.58, 567,072.22 and 228,401.52

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Solution

The fourth proportional to 378,476.58, 567,072.22 and 228,401.52 is: 342,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,476.58 : 567,072.22 = 228,401.52 : x
  2. Step 2: Convert to fraction form
    378,476.58/567,072.22 = 228,401.52/x
  3. Step 3: Cross multiply
    378,476.58x = 567,072.22 × 228,401.52
  4. Step 4: Simplify right side
    378,476.58x = 129,520,156,997.77
  5. Step 5: Solve for x
    x = 129,520,156,997.77/378,476.58
  6. Step 6: Final answer
    x = 342,214.46

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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.