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Finding the Fourth Proportional to 479,173.39, 718,149.53 and 254,641.39

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Solution

The fourth proportional to 479,173.39, 718,149.53 and 254,641.39 is: 381,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,173.39 : 718,149.53 = 254,641.39 : x
  2. Step 2: Convert to fraction form
    479,173.39/718,149.53 = 254,641.39/x
  3. Step 3: Cross multiply
    479,173.39x = 718,149.53 × 254,641.39
  4. Step 4: Simplify right side
    479,173.39x = 182,870,593,388.28
  5. Step 5: Solve for x
    x = 182,870,593,388.28/479,173.39
  6. Step 6: Final answer
    x = 381,637.62

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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.