Home / 457,983.43-686,976.92-191,557.06

Finding the Fourth Proportional to 457,983.43, 686,976.92 and 191,557.06

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Solution

The fourth proportional to 457,983.43, 686,976.92 and 191,557.06 is: 287,336.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,983.43 : 686,976.92 = 191,557.06 : x
  2. Step 2: Convert to fraction form
    457,983.43/686,976.92 = 191,557.06/x
  3. Step 3: Cross multiply
    457,983.43x = 686,976.92 × 191,557.06
  4. Step 4: Simplify right side
    457,983.43x = 131,595,279,083.06
  5. Step 5: Solve for x
    x = 131,595,279,083.06/457,983.43
  6. Step 6: Final answer
    x = 287,336.33

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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.