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Finding the Fourth Proportional to 3,469,759.02, 4,788,770.26 and 1,999,381.50

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Solution

The fourth proportional to 3,469,759.02, 4,788,770.26 and 1,999,381.50 is: 2,759,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469,759.02 : 4,788,770.26 = 1,999,381.50 : x
  2. Step 2: Convert to fraction form
    3,469,759.02/4,788,770.26 = 1,999,381.50/x
  3. Step 3: Cross multiply
    3,469,759.02x = 4,788,770.26 × 1,999,381.50
  4. Step 4: Simplify right side
    3,469,759.02x = 9,574,578,665,594.19
  5. Step 5: Solve for x
    x = 9,574,578,665,594.19/3,469,759.02
  6. Step 6: Final answer
    x = 2,759,436.21

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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.