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Finding the Fourth Proportional to 3,699,344.80, 5,554,719.60 and 2,019,728.80

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Solution

The fourth proportional to 3,699,344.80, 5,554,719.60 and 2,019,728.80 is: 3,032,706.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699,344.80 : 5,554,719.60 = 2,019,728.80 : x
  2. Step 2: Convert to fraction form
    3,699,344.80/5,554,719.60 = 2,019,728.80/x
  3. Step 3: Cross multiply
    3,699,344.80x = 5,554,719.60 × 2,019,728.80
  4. Step 4: Simplify right side
    3,699,344.80x = 11,219,027,152,044.48
  5. Step 5: Solve for x
    x = 11,219,027,152,044.48/3,699,344.80
  6. Step 6: Final answer
    x = 3,032,706.54

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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.