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Finding the Fourth Proportional to 552,014.28, 761,694.30 and 310,251.96

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Solution

The fourth proportional to 552,014.28, 761,694.30 and 310,251.96 is: 428,099.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,014.28 : 761,694.30 = 310,251.96 : x
  2. Step 2: Convert to fraction form
    552,014.28/761,694.30 = 310,251.96/x
  3. Step 3: Cross multiply
    552,014.28x = 761,694.30 × 310,251.96
  4. Step 4: Simplify right side
    552,014.28x = 236,317,149,495.83
  5. Step 5: Solve for x
    x = 236,317,149,495.83/552,014.28
  6. Step 6: Final answer
    x = 428,099.70

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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.