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Finding the Fourth Proportional to 3,870,576.80, 5,798,866.80 and 3,310,704.80

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Solution

The fourth proportional to 3,870,576.80, 5,798,866.80 and 3,310,704.80 is: 4,960,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,576.80 : 5,798,866.80 = 3,310,704.80 : x
  2. Step 2: Convert to fraction form
    3,870,576.80/5,798,866.80 = 3,310,704.80/x
  3. Step 3: Cross multiply
    3,870,576.80x = 5,798,866.80 × 3,310,704.80
  4. Step 4: Simplify right side
    3,870,576.80x = 19,198,336,149,320.64
  5. Step 5: Solve for x
    x = 19,198,336,149,320.64/3,870,576.80
  6. Step 6: Final answer
    x = 4,960,071.11

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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.