Home / 427,605.57-641,218.82-227,888.73

Finding the Fourth Proportional to 427,605.57, 641,218.82 and 227,888.73

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Solution

The fourth proportional to 427,605.57, 641,218.82 and 227,888.73 is: 341,732.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,605.57 : 641,218.82 = 227,888.73 : x
  2. Step 2: Convert to fraction form
    427,605.57/641,218.82 = 227,888.73/x
  3. Step 3: Cross multiply
    427,605.57x = 641,218.82 × 227,888.73
  4. Step 4: Simplify right side
    427,605.57x = 146,126,541,402.46
  5. Step 5: Solve for x
    x = 146,126,541,402.46/427,605.57
  6. Step 6: Final answer
    x = 341,732.08

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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.