Home / 396,553.20-545,139.15-341,160.15

Finding the Fourth Proportional to 396,553.20, 545,139.15 and 341,160.15

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Solution

The fourth proportional to 396,553.20, 545,139.15 and 341,160.15 is: 468,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,553.20 : 545,139.15 = 341,160.15 : x
  2. Step 2: Convert to fraction form
    396,553.20/545,139.15 = 341,160.15/x
  3. Step 3: Cross multiply
    396,553.20x = 545,139.15 × 341,160.15
  4. Step 4: Simplify right side
    396,553.20x = 185,979,754,184.87
  5. Step 5: Solve for x
    x = 185,979,754,184.87/396,553.20
  6. Step 6: Final answer
    x = 468,990.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.