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Finding the Fourth Proportional to 5,978,421.92, 8,969,055.78 and 1,934,909.78

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Solution

The fourth proportional to 5,978,421.92, 8,969,055.78 and 1,934,909.78 is: 2,902,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978,421.92 : 8,969,055.78 = 1,934,909.78 : x
  2. Step 2: Convert to fraction form
    5,978,421.92/8,969,055.78 = 1,934,909.78/x
  3. Step 3: Cross multiply
    5,978,421.92x = 8,969,055.78 × 1,934,909.78
  4. Step 4: Simplify right side
    5,978,421.92x = 17,354,313,746,087.53
  5. Step 5: Solve for x
    x = 17,354,313,746,087.53/5,978,421.92
  6. Step 6: Final answer
    x = 2,902,825.19

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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.