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Finding the Fourth Proportional to 469,893.09, 648,458.69 and 255,035.73

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Solution

The fourth proportional to 469,893.09, 648,458.69 and 255,035.73 is: 351,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,893.09 : 648,458.69 = 255,035.73 : x
  2. Step 2: Convert to fraction form
    469,893.09/648,458.69 = 255,035.73/x
  3. Step 3: Cross multiply
    469,893.09x = 648,458.69 × 255,035.73
  4. Step 4: Simplify right side
    469,893.09x = 165,380,134,103.82
  5. Step 5: Solve for x
    x = 165,380,134,103.82/469,893.09
  6. Step 6: Final answer
    x = 351,952.68

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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.