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Finding the Fourth Proportional to 399,064.68, 550,727.17 and 224,694.89

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Solution

The fourth proportional to 399,064.68, 550,727.17 and 224,694.89 is: 310,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,064.68 : 550,727.17 = 224,694.89 : x
  2. Step 2: Convert to fraction form
    399,064.68/550,727.17 = 224,694.89/x
  3. Step 3: Cross multiply
    399,064.68x = 550,727.17 × 224,694.89
  4. Step 4: Simplify right side
    399,064.68x = 123,745,578,129.53
  5. Step 5: Solve for x
    x = 123,745,578,129.53/399,064.68
  6. Step 6: Final answer
    x = 310,089.03

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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.