Home / 807,919.38-1,114,928.43-445,349.25

Finding the Fourth Proportional to 807,919.38, 1,114,928.43 and 445,349.25

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Solution

The fourth proportional to 807,919.38, 1,114,928.43 and 445,349.25 is: 614,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,919.38 : 1,114,928.43 = 445,349.25 : x
  2. Step 2: Convert to fraction form
    807,919.38/1,114,928.43 = 445,349.25/x
  3. Step 3: Cross multiply
    807,919.38x = 1,114,928.43 × 445,349.25
  4. Step 4: Simplify right side
    807,919.38x = 496,532,540,104.18
  5. Step 5: Solve for x
    x = 496,532,540,104.18/807,919.38
  6. Step 6: Final answer
    x = 614,581.79

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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.