Home / 351,971.45-485,723.82-190,826.91

Finding the Fourth Proportional to 351,971.45, 485,723.82 and 190,826.91

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Solution

The fourth proportional to 351,971.45, 485,723.82 and 190,826.91 is: 263,342.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,971.45 : 485,723.82 = 190,826.91 : x
  2. Step 2: Convert to fraction form
    351,971.45/485,723.82 = 190,826.91/x
  3. Step 3: Cross multiply
    351,971.45x = 485,723.82 × 190,826.91
  4. Step 4: Simplify right side
    351,971.45x = 92,689,176,155.59
  5. Step 5: Solve for x
    x = 92,689,176,155.59/351,971.45
  6. Step 6: Final answer
    x = 263,342.88

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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.