Home / 809,191.84-1,213,919.16-303,792.52

Finding the Fourth Proportional to 809,191.84, 1,213,919.16 and 303,792.52

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Solution

The fourth proportional to 809,191.84, 1,213,919.16 and 303,792.52 is: 455,738.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,191.84 : 1,213,919.16 = 303,792.52 : x
  2. Step 2: Convert to fraction form
    809,191.84/1,213,919.16 = 303,792.52/x
  3. Step 3: Cross multiply
    809,191.84x = 1,213,919.16 × 303,792.52
  4. Step 4: Simplify right side
    809,191.84x = 368,779,560,692.68
  5. Step 5: Solve for x
    x = 368,779,560,692.68/809,191.84
  6. Step 6: Final answer
    x = 455,738.11

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1.5x scale

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.