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Finding the Fourth Proportional to 469,945.94, 648,525.89 and 255,085.97

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Solution

The fourth proportional to 469,945.94, 648,525.89 and 255,085.97 is: 352,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,945.94 : 648,525.89 = 255,085.97 : x
  2. Step 2: Convert to fraction form
    469,945.94/648,525.89 = 255,085.97/x
  3. Step 3: Cross multiply
    469,945.94x = 648,525.89 × 255,085.97
  4. Step 4: Simplify right side
    469,945.94x = 165,429,853,115.85
  5. Step 5: Solve for x
    x = 165,429,853,115.85/469,945.94
  6. Step 6: Final answer
    x = 352,018.90

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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.