Home / 2,171,814-2,997,183.38-1,312,208.12

Finding the Fourth Proportional to 2,171,814, 2,997,183.38 and 1,312,208.12

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Solution

The fourth proportional to 2,171,814, 2,997,183.38 and 1,312,208.12 is: 1,810,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,814 : 2,997,183.38 = 1,312,208.12 : x
  2. Step 2: Convert to fraction form
    2,171,814/2,997,183.38 = 1,312,208.12/x
  3. Step 3: Cross multiply
    2,171,814x = 2,997,183.38 × 1,312,208.12
  4. Step 4: Simplify right side
    2,171,814x = 3,932,928,346,818.09
  5. Step 5: Solve for x
    x = 3,932,928,346,818.09/2,171,814
  6. Step 6: Final answer
    x = 1,810,895.57

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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.