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Finding the Fourth Proportional to 516,195, 712,040.22 and 324,876.24

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Solution

The fourth proportional to 516,195, 712,040.22 and 324,876.24 is: 448,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,195 : 712,040.22 = 324,876.24 : x
  2. Step 2: Convert to fraction form
    516,195/712,040.22 = 324,876.24/x
  3. Step 3: Cross multiply
    516,195x = 712,040.22 × 324,876.24
  4. Step 4: Simplify right side
    516,195x = 231,324,949,402.37
  5. Step 5: Solve for x
    x = 231,324,949,402.37/516,195
  6. Step 6: Final answer
    x = 448,134.81

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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.