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Finding the Fourth Proportional to 479,510.14, 718,693.20 and 222,996.43

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Solution

The fourth proportional to 479,510.14, 718,693.20 and 222,996.43 is: 334,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,510.14 : 718,693.20 = 222,996.43 : x
  2. Step 2: Convert to fraction form
    479,510.14/718,693.20 = 222,996.43/x
  3. Step 3: Cross multiply
    479,510.14x = 718,693.20 × 222,996.43
  4. Step 4: Simplify right side
    479,510.14x = 160,266,017,865.28
  5. Step 5: Solve for x
    x = 160,266,017,865.28/479,510.14
  6. Step 6: Final answer
    x = 334,228.63

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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.