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Finding the Fourth Proportional to 6,494,170.78, 9,741,321.51 and 2,900,119.78

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Solution

The fourth proportional to 6,494,170.78, 9,741,321.51 and 2,900,119.78 is: 4,350,208.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,494,170.78 : 9,741,321.51 = 2,900,119.78 : x
  2. Step 2: Convert to fraction form
    6,494,170.78/9,741,321.51 = 2,900,119.78/x
  3. Step 3: Cross multiply
    6,494,170.78x = 9,741,321.51 × 2,900,119.78
  4. Step 4: Simplify right side
    6,494,170.78x = 28,250,999,194,490.46
  5. Step 5: Solve for x
    x = 28,250,999,194,490.46/6,494,170.78
  6. Step 6: Final answer
    x = 4,350,208.85

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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.