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Finding the Fourth Proportional to 865,556.72, 1,297,174.42 and 673,662.92

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Solution

The fourth proportional to 865,556.72, 1,297,174.42 and 673,662.92 is: 1,009,591.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,556.72 : 1,297,174.42 = 673,662.92 : x
  2. Step 2: Convert to fraction form
    865,556.72/1,297,174.42 = 673,662.92/x
  3. Step 3: Cross multiply
    865,556.72x = 1,297,174.42 × 673,662.92
  4. Step 4: Simplify right side
    865,556.72x = 873,858,304,158.19
  5. Step 5: Solve for x
    x = 873,858,304,158.19/865,556.72
  6. Step 6: Final answer
    x = 1,009,591.04

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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.