Home / 377,217.12-520,540.32-207,418.44

Finding the Fourth Proportional to 377,217.12, 520,540.32 and 207,418.44

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Solution

The fourth proportional to 377,217.12, 520,540.32 and 207,418.44 is: 286,226.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,217.12 : 520,540.32 = 207,418.44 : x
  2. Step 2: Convert to fraction form
    377,217.12/520,540.32 = 207,418.44/x
  3. Step 3: Cross multiply
    377,217.12x = 520,540.32 × 207,418.44
  4. Step 4: Simplify right side
    377,217.12x = 107,969,661,131.50
  5. Step 5: Solve for x
    x = 107,969,661,131.50/377,217.12
  6. Step 6: Final answer
    x = 286,226.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.