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Finding the Fourth Proportional to 4,889,078.72, 6,746,791.20 and 2,683,940.96

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Solution

The fourth proportional to 4,889,078.72, 6,746,791.20 and 2,683,940.96 is: 3,703,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889,078.72 : 6,746,791.20 = 2,683,940.96 : x
  2. Step 2: Convert to fraction form
    4,889,078.72/6,746,791.20 = 2,683,940.96/x
  3. Step 3: Cross multiply
    4,889,078.72x = 6,746,791.20 × 2,683,940.96
  4. Step 4: Simplify right side
    4,889,078.72x = 18,107,989,250,247.55
  5. Step 5: Solve for x
    x = 18,107,989,250,247.55/4,889,078.72
  6. Step 6: Final answer
    x = 3,703,763.08

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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.