Home / 436,099.20-653,711.40-199,611.60

Finding the Fourth Proportional to 436,099.20, 653,711.40 and 199,611.60

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Solution

The fourth proportional to 436,099.20, 653,711.40 and 199,611.60 is: 299,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,099.20 : 653,711.40 = 199,611.60 : x
  2. Step 2: Convert to fraction form
    436,099.20/653,711.40 = 199,611.60/x
  3. Step 3: Cross multiply
    436,099.20x = 653,711.40 × 199,611.60
  4. Step 4: Simplify right side
    436,099.20x = 130,488,378,492.24
  5. Step 5: Solve for x
    x = 130,488,378,492.24/436,099.20
  6. Step 6: Final answer
    x = 299,217.19

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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.