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Finding the Fourth Proportional to 479,415.42, 718,936.22 and 179,732.63

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Solution

The fourth proportional to 479,415.42, 718,936.22 and 179,732.63 is: 269,528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,415.42 : 718,936.22 = 179,732.63 : x
  2. Step 2: Convert to fraction form
    479,415.42/718,936.22 = 179,732.63/x
  3. Step 3: Cross multiply
    479,415.42x = 718,936.22 × 179,732.63
  4. Step 4: Simplify right side
    479,415.42x = 129,216,299,869.53
  5. Step 5: Solve for x
    x = 129,216,299,869.53/479,415.42
  6. Step 6: Final answer
    x = 269,528.88

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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.