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Finding the Fourth Proportional to 619,604.76, 855,054.99 and 347,635.11

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Solution

The fourth proportional to 619,604.76, 855,054.99 and 347,635.11 is: 479,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,604.76 : 855,054.99 = 347,635.11 : x
  2. Step 2: Convert to fraction form
    619,604.76/855,054.99 = 347,635.11/x
  3. Step 3: Cross multiply
    619,604.76x = 855,054.99 × 347,635.11
  4. Step 4: Simplify right side
    619,604.76x = 297,247,135,504.70
  5. Step 5: Solve for x
    x = 297,247,135,504.70/619,604.76
  6. Step 6: Final answer
    x = 479,736.69

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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.