Home / 453,438.56-680,196-137,898.40

Finding the Fourth Proportional to 453,438.56, 680,196 and 137,898.40

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Solution

The fourth proportional to 453,438.56, 680,196 and 137,898.40 is: 206,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,438.56 : 680,196 = 137,898.40 : x
  2. Step 2: Convert to fraction form
    453,438.56/680,196 = 137,898.40/x
  3. Step 3: Cross multiply
    453,438.56x = 680,196 × 137,898.40
  4. Step 4: Simplify right side
    453,438.56x = 93,797,940,086.40
  5. Step 5: Solve for x
    x = 93,797,940,086.40/453,438.56
  6. Step 6: Final answer
    x = 206,859.21

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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.