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Finding the Fourth Proportional to 1,633,218, 2,253,840.84 and 917,826

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Solution

The fourth proportional to 1,633,218, 2,253,840.84 and 917,826 is: 1,266,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633,218 : 2,253,840.84 = 917,826 : x
  2. Step 2: Convert to fraction form
    1,633,218/2,253,840.84 = 917,826/x
  3. Step 3: Cross multiply
    1,633,218x = 2,253,840.84 × 917,826
  4. Step 4: Simplify right side
    1,633,218x = 2,068,633,722,813.84
  5. Step 5: Solve for x
    x = 2,068,633,722,813.84/1,633,218
  6. Step 6: Final answer
    x = 1,266,599.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.