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Finding the Fourth Proportional to 5,978,592.40, 8,969,200.80 and 2,947,410.40

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Solution

The fourth proportional to 5,978,592.40, 8,969,200.80 and 2,947,410.40 is: 4,421,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978,592.40 : 8,969,200.80 = 2,947,410.40 : x
  2. Step 2: Convert to fraction form
    5,978,592.40/8,969,200.80 = 2,947,410.40/x
  3. Step 3: Cross multiply
    5,978,592.40x = 8,969,200.80 × 2,947,410.40
  4. Step 4: Simplify right side
    5,978,592.40x = 26,435,915,717,608.32
  5. Step 5: Solve for x
    x = 26,435,915,717,608.32/5,978,592.40
  6. Step 6: Final answer
    x = 4,421,762.51

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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.