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Finding the Fourth Proportional to 508,226.21, 701,234.55 and 304,199.61

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Solution

The fourth proportional to 508,226.21, 701,234.55 and 304,199.61 is: 419,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,226.21 : 701,234.55 = 304,199.61 : x
  2. Step 2: Convert to fraction form
    508,226.21/701,234.55 = 304,199.61/x
  3. Step 3: Cross multiply
    508,226.21x = 701,234.55 × 304,199.61
  4. Step 4: Simplify right side
    508,226.21x = 213,315,278,951.99
  5. Step 5: Solve for x
    x = 213,315,278,951.99/508,226.21
  6. Step 6: Final answer
    x = 419,725.07

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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.