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Finding the Fourth Proportional to 456,351.05, 629,759.04 and 252,385.97

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Solution

The fourth proportional to 456,351.05, 629,759.04 and 252,385.97 is: 348,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,351.05 : 629,759.04 = 252,385.97 : x
  2. Step 2: Convert to fraction form
    456,351.05/629,759.04 = 252,385.97/x
  3. Step 3: Cross multiply
    456,351.05x = 629,759.04 × 252,385.97
  4. Step 4: Simplify right side
    456,351.05x = 158,942,343,027.87
  5. Step 5: Solve for x
    x = 158,942,343,027.87/456,351.05
  6. Step 6: Final answer
    x = 348,289.64

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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.