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Finding the Fourth Proportional to 3,992,752.80, 5,991,202.80 and 1,749,117.60

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Solution

The fourth proportional to 3,992,752.80, 5,991,202.80 and 1,749,117.60 is: 2,624,584.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992,752.80 : 5,991,202.80 = 1,749,117.60 : x
  2. Step 2: Convert to fraction form
    3,992,752.80/5,991,202.80 = 1,749,117.60/x
  3. Step 3: Cross multiply
    3,992,752.80x = 5,991,202.80 × 1,749,117.60
  4. Step 4: Simplify right side
    3,992,752.80x = 10,479,318,262,649.28
  5. Step 5: Solve for x
    x = 10,479,318,262,649.28/3,992,752.80
  6. Step 6: Final answer
    x = 2,624,584.79

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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.