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Finding the Fourth Proportional to 547,808.76, 755,974.50 and 302,791.88

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Solution

The fourth proportional to 547,808.76, 755,974.50 and 302,791.88 is: 417,851.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,808.76 : 755,974.50 = 302,791.88 : x
  2. Step 2: Convert to fraction form
    547,808.76/755,974.50 = 302,791.88/x
  3. Step 3: Cross multiply
    547,808.76x = 755,974.50 × 302,791.88
  4. Step 4: Simplify right side
    547,808.76x = 228,902,940,087.06
  5. Step 5: Solve for x
    x = 228,902,940,087.06/547,808.76
  6. Step 6: Final answer
    x = 417,851.92

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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.