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Finding the Fourth Proportional to 968,003.88, 1,335,846.48 and 538,274.76

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Solution

The fourth proportional to 968,003.88, 1,335,846.48 and 538,274.76 is: 742,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,003.88 : 1,335,846.48 = 538,274.76 : x
  2. Step 2: Convert to fraction form
    968,003.88/1,335,846.48 = 538,274.76/x
  3. Step 3: Cross multiply
    968,003.88x = 1,335,846.48 × 538,274.76
  4. Step 4: Simplify right side
    968,003.88x = 719,052,443,418.85
  5. Step 5: Solve for x
    x = 719,052,443,418.85/968,003.88
  6. Step 6: Final answer
    x = 742,819.79

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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.