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Finding the Fourth Proportional to 5,274,649.44, 7,913,394.32 and 2,714,469.28

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Solution

The fourth proportional to 5,274,649.44, 7,913,394.32 and 2,714,469.28 is: 4,072,434.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274,649.44 : 7,913,394.32 = 2,714,469.28 : x
  2. Step 2: Convert to fraction form
    5,274,649.44/7,913,394.32 = 2,714,469.28/x
  3. Step 3: Cross multiply
    5,274,649.44x = 7,913,394.32 × 2,714,469.28
  4. Step 4: Simplify right side
    5,274,649.44x = 21,480,665,782,166.49
  5. Step 5: Solve for x
    x = 21,480,665,782,166.49/5,274,649.44
  6. Step 6: Final answer
    x = 4,072,434.77

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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.