Home / 435,409.43-653,190.66-198,776.03

Finding the Fourth Proportional to 435,409.43, 653,190.66 and 198,776.03

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Solution

The fourth proportional to 435,409.43, 653,190.66 and 198,776.03 is: 298,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,409.43 : 653,190.66 = 198,776.03 : x
  2. Step 2: Convert to fraction form
    435,409.43/653,190.66 = 198,776.03/x
  3. Step 3: Cross multiply
    435,409.43x = 653,190.66 × 198,776.03
  4. Step 4: Simplify right side
    435,409.43x = 129,838,642,961.93
  5. Step 5: Solve for x
    x = 129,838,642,961.93/435,409.43
  6. Step 6: Final answer
    x = 298,198.97

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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.