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Finding the Fourth Proportional to 396,001.80, 593,127.90 and 208,794.60

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Solution

The fourth proportional to 396,001.80, 593,127.90 and 208,794.60 is: 312,730.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,001.80 : 593,127.90 = 208,794.60 : x
  2. Step 2: Convert to fraction form
    396,001.80/593,127.90 = 208,794.60/x
  3. Step 3: Cross multiply
    396,001.80x = 593,127.90 × 208,794.60
  4. Step 4: Simplify right side
    396,001.80x = 123,841,902,629.34
  5. Step 5: Solve for x
    x = 123,841,902,629.34/396,001.80
  6. Step 6: Final answer
    x = 312,730.66

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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.