Home / 1,890,885-2,836,352.21-628,712.63

Finding the Fourth Proportional to 1,890,885, 2,836,352.21 and 628,712.63

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Solution

The fourth proportional to 1,890,885, 2,836,352.21 and 628,712.63 is: 943,077.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,885 : 2,836,352.21 = 628,712.63 : x
  2. Step 2: Convert to fraction form
    1,890,885/2,836,352.21 = 628,712.63/x
  3. Step 3: Cross multiply
    1,890,885x = 2,836,352.21 × 628,712.63
  4. Step 4: Simplify right side
    1,890,885x = 1,783,250,440,230.09
  5. Step 5: Solve for x
    x = 1,783,250,440,230.09/1,890,885
  6. Step 6: Final answer
    x = 943,077.15

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Double scale
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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.