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Finding the Fourth Proportional to 455,958.57, 629,255.40 and 252,005.10

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Solution

The fourth proportional to 455,958.57, 629,255.40 and 252,005.10 is: 347,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,958.57 : 629,255.40 = 252,005.10 : x
  2. Step 2: Convert to fraction form
    455,958.57/629,255.40 = 252,005.10/x
  3. Step 3: Cross multiply
    455,958.57x = 629,255.40 × 252,005.10
  4. Step 4: Simplify right side
    455,958.57x = 158,575,570,002.54
  5. Step 5: Solve for x
    x = 158,575,570,002.54/455,958.57
  6. Step 6: Final answer
    x = 347,785.04

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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.