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Finding the Fourth Proportional to 451,360.08, 622,940.69 and 279,333.46

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Solution

The fourth proportional to 451,360.08, 622,940.69 and 279,333.46 is: 385,519.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,360.08 : 622,940.69 = 279,333.46 : x
  2. Step 2: Convert to fraction form
    451,360.08/622,940.69 = 279,333.46/x
  3. Step 3: Cross multiply
    451,360.08x = 622,940.69 × 279,333.46
  4. Step 4: Simplify right side
    451,360.08x = 174,008,179,789.50
  5. Step 5: Solve for x
    x = 174,008,179,789.50/451,360.08
  6. Step 6: Final answer
    x = 385,519.65

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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.