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Finding the Fourth Proportional to 568,901.18, 853,384.56 and 213,918.27

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Solution

The fourth proportional to 568,901.18, 853,384.56 and 213,918.27 is: 320,889.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,901.18 : 853,384.56 = 213,918.27 : x
  2. Step 2: Convert to fraction form
    568,901.18/853,384.56 = 213,918.27/x
  3. Step 3: Cross multiply
    568,901.18x = 853,384.56 × 213,918.27
  4. Step 4: Simplify right side
    568,901.18x = 182,554,548,719.91
  5. Step 5: Solve for x
    x = 182,554,548,719.91/568,901.18
  6. Step 6: Final answer
    x = 320,889.74

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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.