Home / 2,628,856.76-3,943,428.66-831,606.60

Finding the Fourth Proportional to 2,628,856.76, 3,943,428.66 and 831,606.60

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Solution

The fourth proportional to 2,628,856.76, 3,943,428.66 and 831,606.60 is: 1,247,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,856.76 : 3,943,428.66 = 831,606.60 : x
  2. Step 2: Convert to fraction form
    2,628,856.76/3,943,428.66 = 831,606.60/x
  3. Step 3: Cross multiply
    2,628,856.76x = 3,943,428.66 × 831,606.60
  4. Step 4: Simplify right side
    2,628,856.76x = 3,279,381,300,285.16
  5. Step 5: Solve for x
    x = 3,279,381,300,285.16/2,628,856.76
  6. Step 6: Final answer
    x = 1,247,455.30

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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.