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Finding the Fourth Proportional to 3,198,697.71, 4,798,294.47 and 1,068,789.39

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Solution

The fourth proportional to 3,198,697.71, 4,798,294.47 and 1,068,789.39 is: 1,603,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198,697.71 : 4,798,294.47 = 1,068,789.39 : x
  2. Step 2: Convert to fraction form
    3,198,697.71/4,798,294.47 = 1,068,789.39/x
  3. Step 3: Cross multiply
    3,198,697.71x = 4,798,294.47 × 1,068,789.39
  4. Step 4: Simplify right side
    3,198,697.71x = 5,128,366,219,631.67
  5. Step 5: Solve for x
    x = 5,128,366,219,631.67/3,198,697.71
  6. Step 6: Final answer
    x = 1,603,266.92

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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.