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Finding the Fourth Proportional to 5,429,908.78, 7,493,068.83 and 3,015,616.30

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Solution

The fourth proportional to 5,429,908.78, 7,493,068.83 and 3,015,616.30 is: 4,161,436.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,908.78 : 7,493,068.83 = 3,015,616.30 : x
  2. Step 2: Convert to fraction form
    5,429,908.78/7,493,068.83 = 3,015,616.30/x
  3. Step 3: Cross multiply
    5,429,908.78x = 7,493,068.83 × 3,015,616.30
  4. Step 4: Simplify right side
    5,429,908.78x = 22,596,220,500,769.93
  5. Step 5: Solve for x
    x = 22,596,220,500,769.93/5,429,908.78
  6. Step 6: Final answer
    x = 4,161,436.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.