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Finding the Fourth Proportional to 5,338,965.92, 7,368,420.30 and 3,015,956.39

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Solution

The fourth proportional to 5,338,965.92, 7,368,420.30 and 3,015,956.39 is: 4,162,385.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,338,965.92 : 7,368,420.30 = 3,015,956.39 : x
  2. Step 2: Convert to fraction form
    5,338,965.92/7,368,420.30 = 3,015,956.39/x
  3. Step 3: Cross multiply
    5,338,965.92x = 7,368,420.30 × 3,015,956.39
  4. Step 4: Simplify right side
    5,338,965.92x = 22,222,834,251,148.61
  5. Step 5: Solve for x
    x = 22,222,834,251,148.61/5,338,965.92
  6. Step 6: Final answer
    x = 4,162,385.49

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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.