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Finding the Fourth Proportional to 1,890,900.34, 2,836,375.19 and 628,727.96

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Solution

The fourth proportional to 1,890,900.34, 2,836,375.19 and 628,727.96 is: 943,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,900.34 : 2,836,375.19 = 628,727.96 : x
  2. Step 2: Convert to fraction form
    1,890,900.34/2,836,375.19 = 628,727.96/x
  3. Step 3: Cross multiply
    1,890,900.34x = 2,836,375.19 × 628,727.96
  4. Step 4: Simplify right side
    1,890,900.34x = 1,783,308,387,003.31
  5. Step 5: Solve for x
    x = 1,783,308,387,003.31/1,890,900.34
  6. Step 6: Final answer
    x = 943,100.15

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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.