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Finding the Fourth Proportional to 436,849.20, 655,273.80 and 156,265.20

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Solution

The fourth proportional to 436,849.20, 655,273.80 and 156,265.20 is: 234,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,849.20 : 655,273.80 = 156,265.20 : x
  2. Step 2: Convert to fraction form
    436,849.20/655,273.80 = 156,265.20/x
  3. Step 3: Cross multiply
    436,849.20x = 655,273.80 × 156,265.20
  4. Step 4: Simplify right side
    436,849.20x = 102,396,491,411.76
  5. Step 5: Solve for x
    x = 102,396,491,411.76/436,849.20
  6. Step 6: Final answer
    x = 234,397.80

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1.5x scale

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.