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Finding the Fourth Proportional to 612,847.26, 919,277.37 and 186,452.51

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Solution

The fourth proportional to 612,847.26, 919,277.37 and 186,452.51 is: 279,680.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,847.26 : 919,277.37 = 186,452.51 : x
  2. Step 2: Convert to fraction form
    612,847.26/919,277.37 = 186,452.51/x
  3. Step 3: Cross multiply
    612,847.26x = 919,277.37 × 186,452.51
  4. Step 4: Simplify right side
    612,847.26x = 171,401,568,426.31
  5. Step 5: Solve for x
    x = 171,401,568,426.31/612,847.26
  6. Step 6: Final answer
    x = 279,680.73

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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.