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Finding the Fourth Proportional to 1,395,156, 2,092,753.68 and 397,884

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Solution

The fourth proportional to 1,395,156, 2,092,753.68 and 397,884 is: 596,831.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,156 : 2,092,753.68 = 397,884 : x
  2. Step 2: Convert to fraction form
    1,395,156/2,092,753.68 = 397,884/x
  3. Step 3: Cross multiply
    1,395,156x = 2,092,753.68 × 397,884
  4. Step 4: Simplify right side
    1,395,156x = 832,673,205,213.12
  5. Step 5: Solve for x
    x = 832,673,205,213.12/1,395,156
  6. Step 6: Final answer
    x = 596,831.61

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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.