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Finding the Fourth Proportional to 469,896.60, 648,451.02 and 255,034.80

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Solution

The fourth proportional to 469,896.60, 648,451.02 and 255,034.80 is: 351,944.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,896.60 : 648,451.02 = 255,034.80 : x
  2. Step 2: Convert to fraction form
    469,896.60/648,451.02 = 255,034.80/x
  3. Step 3: Cross multiply
    469,896.60x = 648,451.02 × 255,034.80
  4. Step 4: Simplify right side
    469,896.60x = 165,377,576,195.50
  5. Step 5: Solve for x
    x = 165,377,576,195.50/469,896.60
  6. Step 6: Final answer
    x = 351,944.61

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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.