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Finding the Fourth Proportional to 479,509.14, 718,691.70 and 222,995.43

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Solution

The fourth proportional to 479,509.14, 718,691.70 and 222,995.43 is: 334,227.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,509.14 : 718,691.70 = 222,995.43 : x
  2. Step 2: Convert to fraction form
    479,509.14/718,691.70 = 222,995.43/x
  3. Step 3: Cross multiply
    479,509.14x = 718,691.70 × 222,995.43
  4. Step 4: Simplify right side
    479,509.14x = 160,264,964,678.93
  5. Step 5: Solve for x
    x = 160,264,964,678.93/479,509.14
  6. Step 6: Final answer
    x = 334,227.13

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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.