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Finding the Fourth Proportional to 436,896.56, 655,432.32 and 137,452.48

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Solution

The fourth proportional to 436,896.56, 655,432.32 and 137,452.48 is: 206,206.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,896.56 : 655,432.32 = 137,452.48 : x
  2. Step 2: Convert to fraction form
    436,896.56/655,432.32 = 137,452.48/x
  3. Step 3: Cross multiply
    436,896.56x = 655,432.32 × 137,452.48
  4. Step 4: Simplify right side
    436,896.56x = 90,090,797,856.15
  5. Step 5: Solve for x
    x = 90,090,797,856.15/436,896.56
  6. Step 6: Final answer
    x = 206,206.24

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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.