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Finding the Fourth Proportional to 4,969,998.82, 7,455,787.17 and 1,603,418.50

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Solution

The fourth proportional to 4,969,998.82, 7,455,787.17 and 1,603,418.50 is: 2,405,382.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969,998.82 : 7,455,787.17 = 1,603,418.50 : x
  2. Step 2: Convert to fraction form
    4,969,998.82/7,455,787.17 = 1,603,418.50/x
  3. Step 3: Cross multiply
    4,969,998.82x = 7,455,787.17 × 1,603,418.50
  4. Step 4: Simplify right side
    4,969,998.82x = 11,954,747,080,440.64
  5. Step 5: Solve for x
    x = 11,954,747,080,440.64/4,969,998.82
  6. Step 6: Final answer
    x = 2,405,382.28

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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.