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Finding the Fourth Proportional to 3,906,446.65, 5,868,650.40 and 2,756,340.30

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Solution

The fourth proportional to 3,906,446.65, 5,868,650.40 and 2,756,340.30 is: 4,140,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906,446.65 : 5,868,650.40 = 2,756,340.30 : x
  2. Step 2: Convert to fraction form
    3,906,446.65/5,868,650.40 = 2,756,340.30/x
  3. Step 3: Cross multiply
    3,906,446.65x = 5,868,650.40 × 2,756,340.30
  4. Step 4: Simplify right side
    3,906,446.65x = 16,175,997,604,131.12
  5. Step 5: Solve for x
    x = 16,175,997,604,131.12/3,906,446.65
  6. Step 6: Final answer
    x = 4,140,846.93

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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.