Home / 712,207.20-1,066,928.40-396,098.40

Finding the Fourth Proportional to 712,207.20, 1,066,928.40 and 396,098.40

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Solution

The fourth proportional to 712,207.20, 1,066,928.40 and 396,098.40 is: 593,378.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,207.20 : 1,066,928.40 = 396,098.40 : x
  2. Step 2: Convert to fraction form
    712,207.20/1,066,928.40 = 396,098.40/x
  3. Step 3: Cross multiply
    712,207.20x = 1,066,928.40 × 396,098.40
  4. Step 4: Simplify right side
    712,207.20x = 422,608,632,154.56
  5. Step 5: Solve for x
    x = 422,608,632,154.56/712,207.20
  6. Step 6: Final answer
    x = 593,378.77

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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.