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Finding the Fourth Proportional to 544,882.78, 751,926.52 and 315,449.78

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Solution

The fourth proportional to 544,882.78, 751,926.52 and 315,449.78 is: 435,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,882.78 : 751,926.52 = 315,449.78 : x
  2. Step 2: Convert to fraction form
    544,882.78/751,926.52 = 315,449.78/x
  3. Step 3: Cross multiply
    544,882.78x = 751,926.52 × 315,449.78
  4. Step 4: Simplify right side
    544,882.78x = 237,195,055,310.17
  5. Step 5: Solve for x
    x = 237,195,055,310.17/544,882.78
  6. Step 6: Final answer
    x = 435,313.91

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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.