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Finding the Fourth Proportional to 4,969,978.24, 7,454,977.08 and 1,375,755.52

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Solution

The fourth proportional to 4,969,978.24, 7,454,977.08 and 1,375,755.52 is: 2,063,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969,978.24 : 7,454,977.08 = 1,375,755.52 : x
  2. Step 2: Convert to fraction form
    4,969,978.24/7,454,977.08 = 1,375,755.52/x
  3. Step 3: Cross multiply
    4,969,978.24x = 7,454,977.08 × 1,375,755.52
  4. Step 4: Simplify right side
    4,969,978.24x = 10,256,225,869,283.48
  5. Step 5: Solve for x
    x = 10,256,225,869,283.48/4,969,978.24
  6. Step 6: Final answer
    x = 2,063,635.97

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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.