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Finding the Fourth Proportional to 1,753,804.60, 2,629,929.30 and 806,687.80

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Solution

The fourth proportional to 1,753,804.60, 2,629,929.30 and 806,687.80 is: 1,209,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753,804.60 : 2,629,929.30 = 806,687.80 : x
  2. Step 2: Convert to fraction form
    1,753,804.60/2,629,929.30 = 806,687.80/x
  3. Step 3: Cross multiply
    1,753,804.60x = 2,629,929.30 × 806,687.80
  4. Step 4: Simplify right side
    1,753,804.60x = 2,121,531,881,172.54
  5. Step 5: Solve for x
    x = 2,121,531,881,172.54/1,753,804.60
  6. Step 6: Final answer
    x = 1,209,674.03

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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.