Home / 1,617,991.20-2,427,861.60-719,571.60

Finding the Fourth Proportional to 1,617,991.20, 2,427,861.60 and 719,571.60

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Solution

The fourth proportional to 1,617,991.20, 2,427,861.60 and 719,571.60 is: 1,079,746.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,991.20 : 2,427,861.60 = 719,571.60 : x
  2. Step 2: Convert to fraction form
    1,617,991.20/2,427,861.60 = 719,571.60/x
  3. Step 3: Cross multiply
    1,617,991.20x = 2,427,861.60 × 719,571.60
  4. Step 4: Simplify right side
    1,617,991.20x = 1,747,020,256,090.56
  5. Step 5: Solve for x
    x = 1,747,020,256,090.56/1,617,991.20
  6. Step 6: Final answer
    x = 1,079,746.45

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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.