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Finding the Fourth Proportional to 5,685,978.88, 8,525,844.48 and 2,800,997.60

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Solution

The fourth proportional to 5,685,978.88, 8,525,844.48 and 2,800,997.60 is: 4,199,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685,978.88 : 8,525,844.48 = 2,800,997.60 : x
  2. Step 2: Convert to fraction form
    5,685,978.88/8,525,844.48 = 2,800,997.60/x
  3. Step 3: Cross multiply
    5,685,978.88x = 8,525,844.48 × 2,800,997.60
  4. Step 4: Simplify right side
    5,685,978.88x = 23,880,869,926,453.25
  5. Step 5: Solve for x
    x = 23,880,869,926,453.25/5,685,978.88
  6. Step 6: Final answer
    x = 4,199,957.55

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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.