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Finding the Fourth Proportional to 544,876.28, 751,917.54 and 315,443.28

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Solution

The fourth proportional to 544,876.28, 751,917.54 and 315,443.28 is: 435,304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,876.28 : 751,917.54 = 315,443.28 : x
  2. Step 2: Convert to fraction form
    544,876.28/751,917.54 = 315,443.28/x
  3. Step 3: Cross multiply
    544,876.28x = 751,917.54 × 315,443.28
  4. Step 4: Simplify right side
    544,876.28x = 237,187,335,107.13
  5. Step 5: Solve for x
    x = 237,187,335,107.13/544,876.28
  6. Step 6: Final answer
    x = 435,304.94

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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.