Home / 2,190,183.20-3,022,420.65-1,223,327.60

Finding the Fourth Proportional to 2,190,183.20, 3,022,420.65 and 1,223,327.60

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Solution

The fourth proportional to 2,190,183.20, 3,022,420.65 and 1,223,327.60 is: 1,688,174.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,183.20 : 3,022,420.65 = 1,223,327.60 : x
  2. Step 2: Convert to fraction form
    2,190,183.20/3,022,420.65 = 1,223,327.60/x
  3. Step 3: Cross multiply
    2,190,183.20x = 3,022,420.65 × 1,223,327.60
  4. Step 4: Simplify right side
    2,190,183.20x = 3,697,410,599,954.94
  5. Step 5: Solve for x
    x = 3,697,410,599,954.94/2,190,183.20
  6. Step 6: Final answer
    x = 1,688,174.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.