Home / 809,667.21-1,212,955.34-453,604.17

Finding the Fourth Proportional to 809,667.21, 1,212,955.34 and 453,604.17

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Solution

The fourth proportional to 809,667.21, 1,212,955.34 and 453,604.17 is: 679,540.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,667.21 : 1,212,955.34 = 453,604.17 : x
  2. Step 2: Convert to fraction form
    809,667.21/1,212,955.34 = 453,604.17/x
  3. Step 3: Cross multiply
    809,667.21x = 1,212,955.34 × 453,604.17
  4. Step 4: Simplify right side
    809,667.21x = 550,201,597,979.75
  5. Step 5: Solve for x
    x = 550,201,597,979.75/809,667.21
  6. Step 6: Final answer
    x = 679,540.42

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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.