Home / 406,361.11-609,581.75-140,086.57

Finding the Fourth Proportional to 406,361.11, 609,581.75 and 140,086.57

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Solution

The fourth proportional to 406,361.11, 609,581.75 and 140,086.57 is: 210,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,361.11 : 609,581.75 = 140,086.57 : x
  2. Step 2: Convert to fraction form
    406,361.11/609,581.75 = 140,086.57/x
  3. Step 3: Cross multiply
    406,361.11x = 609,581.75 × 140,086.57
  4. Step 4: Simplify right side
    406,361.11x = 85,394,212,743.76
  5. Step 5: Solve for x
    x = 85,394,212,743.76/406,361.11
  6. Step 6: Final answer
    x = 210,143.67

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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.