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Finding the Fourth Proportional to 469,796.61, 648,321.08 and 254,936.72

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Solution

The fourth proportional to 469,796.61, 648,321.08 and 254,936.72 is: 351,813.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,796.61 : 648,321.08 = 254,936.72 : x
  2. Step 2: Convert to fraction form
    469,796.61/648,321.08 = 254,936.72/x
  3. Step 3: Cross multiply
    469,796.61x = 648,321.08 × 254,936.72
  4. Step 4: Simplify right side
    469,796.61x = 165,280,848,658.60
  5. Step 5: Solve for x
    x = 165,280,848,658.60/469,796.61
  6. Step 6: Final answer
    x = 351,813.63

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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.