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Finding the Fourth Proportional to 2,079,634, 3,119,451 and 749,938

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Solution

The fourth proportional to 2,079,634, 3,119,451 and 749,938 is: 1,124,907

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,634 : 3,119,451 = 749,938 : x
  2. Step 2: Convert to fraction form
    2,079,634/3,119,451 = 749,938/x
  3. Step 3: Cross multiply
    2,079,634x = 3,119,451 × 749,938
  4. Step 4: Simplify right side
    2,079,634x = 2,339,394,844,038
  5. Step 5: Solve for x
    x = 2,339,394,844,038/2,079,634
  6. Step 6: Final answer
    x = 1,124,907

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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.