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Finding the Fourth Proportional to 451,180.74, 622,396.54 and 305,937.38

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Solution

The fourth proportional to 451,180.74, 622,396.54 and 305,937.38 is: 422,035.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,180.74 : 622,396.54 = 305,937.38 : x
  2. Step 2: Convert to fraction form
    451,180.74/622,396.54 = 305,937.38/x
  3. Step 3: Cross multiply
    451,180.74x = 622,396.54 × 305,937.38
  4. Step 4: Simplify right side
    451,180.74x = 190,414,366,768.67
  5. Step 5: Solve for x
    x = 190,414,366,768.67/451,180.74
  6. Step 6: Final answer
    x = 422,035.67

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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.