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Finding the Fourth Proportional to 1,868,893.98, 2,799,269.37 and 1,228,474.77

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Solution

The fourth proportional to 1,868,893.98, 2,799,269.37 and 1,228,474.77 is: 1,840,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,893.98 : 2,799,269.37 = 1,228,474.77 : x
  2. Step 2: Convert to fraction form
    1,868,893.98/2,799,269.37 = 1,228,474.77/x
  3. Step 3: Cross multiply
    1,868,893.98x = 2,799,269.37 × 1,228,474.77
  4. Step 4: Simplify right side
    1,868,893.98x = 3,438,831,795,478.80
  5. Step 5: Solve for x
    x = 3,438,831,795,478.80/1,868,893.98
  6. Step 6: Final answer
    x = 1,840,035.78

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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.