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Finding the Fourth Proportional to 479,694.26, 661,967.52 and 261,895.52

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Solution

The fourth proportional to 479,694.26, 661,967.52 and 261,895.52 is: 361,410.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,694.26 : 661,967.52 = 261,895.52 : x
  2. Step 2: Convert to fraction form
    479,694.26/661,967.52 = 261,895.52/x
  3. Step 3: Cross multiply
    479,694.26x = 661,967.52 × 261,895.52
  4. Step 4: Simplify right side
    479,694.26x = 173,366,327,873.51
  5. Step 5: Solve for x
    x = 173,366,327,873.51/479,694.26
  6. Step 6: Final answer
    x = 361,410.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.