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Finding the Fourth Proportional to 2,113,670, 3,169,839 and 693,395.12

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Solution

The fourth proportional to 2,113,670, 3,169,839 and 693,395.12 is: 1,039,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,670 : 3,169,839 = 693,395.12 : x
  2. Step 2: Convert to fraction form
    2,113,670/3,169,839 = 693,395.12/x
  3. Step 3: Cross multiply
    2,113,670x = 3,169,839 × 693,395.12
  4. Step 4: Simplify right side
    2,113,670x = 2,197,950,893,785.68
  5. Step 5: Solve for x
    x = 2,197,950,893,785.68/2,113,670
  6. Step 6: Final answer
    x = 1,039,874.20

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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.