Home / 516,850.57-713,191.79-287,350.23

Finding the Fourth Proportional to 516,850.57, 713,191.79 and 287,350.23

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Solution

The fourth proportional to 516,850.57, 713,191.79 and 287,350.23 is: 396,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,850.57 : 713,191.79 = 287,350.23 : x
  2. Step 2: Convert to fraction form
    516,850.57/713,191.79 = 287,350.23/x
  3. Step 3: Cross multiply
    516,850.57x = 713,191.79 × 287,350.23
  4. Step 4: Simplify right side
    516,850.57x = 204,935,826,667.11
  5. Step 5: Solve for x
    x = 204,935,826,667.11/516,850.57
  6. Step 6: Final answer
    x = 396,508.85

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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.