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Finding the Fourth Proportional to 3,866,412.80, 5,792,620.80 and 3,306,540.80

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Solution

The fourth proportional to 3,866,412.80, 5,792,620.80 and 3,306,540.80 is: 4,953,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866,412.80 : 5,792,620.80 = 3,306,540.80 : x
  2. Step 2: Convert to fraction form
    3,866,412.80/5,792,620.80 = 3,306,540.80/x
  3. Step 3: Cross multiply
    3,866,412.80x = 5,792,620.80 × 3,306,540.80
  4. Step 4: Simplify right side
    3,866,412.80x = 19,153,537,014,128.64
  5. Step 5: Solve for x
    x = 19,153,537,014,128.64/3,866,412.80
  6. Step 6: Final answer
    x = 4,953,826.20

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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.