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Finding the Fourth Proportional to 5,978,114.40, 8,967,171.60 and 3,958,638.60

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Solution

The fourth proportional to 5,978,114.40, 8,967,171.60 and 3,958,638.60 is: 5,937,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978,114.40 : 8,967,171.60 = 3,958,638.60 : x
  2. Step 2: Convert to fraction form
    5,978,114.40/8,967,171.60 = 3,958,638.60/x
  3. Step 3: Cross multiply
    5,978,114.40x = 8,967,171.60 × 3,958,638.60
  4. Step 4: Simplify right side
    5,978,114.40x = 35,497,791,628,583.76
  5. Step 5: Solve for x
    x = 35,497,791,628,583.76/5,978,114.40
  6. Step 6: Final answer
    x = 5,937,957.90

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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.