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Finding the Fourth Proportional to 423,891.84, 635,321.28 and 234,344.64

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Solution

The fourth proportional to 423,891.84, 635,321.28 and 234,344.64 is: 351,231.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,891.84 : 635,321.28 = 234,344.64 : x
  2. Step 2: Convert to fraction form
    423,891.84/635,321.28 = 234,344.64/x
  3. Step 3: Cross multiply
    423,891.84x = 635,321.28 × 234,344.64
  4. Step 4: Simplify right side
    423,891.84x = 148,884,136,645.94
  5. Step 5: Solve for x
    x = 148,884,136,645.94/423,891.84
  6. Step 6: Final answer
    x = 351,231.43

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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.