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Finding the Fourth Proportional to 1,961,387.07, 2,942,249.90 and 541,443.30

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Solution

The fourth proportional to 1,961,387.07, 2,942,249.90 and 541,443.30 is: 812,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,387.07 : 2,942,249.90 = 541,443.30 : x
  2. Step 2: Convert to fraction form
    1,961,387.07/2,942,249.90 = 541,443.30/x
  3. Step 3: Cross multiply
    1,961,387.07x = 2,942,249.90 × 541,443.30
  4. Step 4: Simplify right side
    1,961,387.07x = 1,593,061,492,573.45
  5. Step 5: Solve for x
    x = 1,593,061,492,573.45/1,961,387.07
  6. Step 6: Final answer
    x = 812,211.68

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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.