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Finding the Fourth Proportional to 469,910.64, 648,477.12 and 255,050.64

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Solution

The fourth proportional to 469,910.64, 648,477.12 and 255,050.64 is: 351,970.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,910.64 : 648,477.12 = 255,050.64 : x
  2. Step 2: Convert to fraction form
    469,910.64/648,477.12 = 255,050.64/x
  3. Step 3: Cross multiply
    469,910.64x = 648,477.12 × 255,050.64
  4. Step 4: Simplify right side
    469,910.64x = 165,394,504,481.36
  5. Step 5: Solve for x
    x = 165,394,504,481.36/469,910.64
  6. Step 6: Final answer
    x = 351,970.12

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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.