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Finding the Fourth Proportional to 275,725.60, 413,588.40 and 251,231.20

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Solution

The fourth proportional to 275,725.60, 413,588.40 and 251,231.20 is: 376,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,725.60 : 413,588.40 = 251,231.20 : x
  2. Step 2: Convert to fraction form
    275,725.60/413,588.40 = 251,231.20/x
  3. Step 3: Cross multiply
    275,725.60x = 413,588.40 × 251,231.20
  4. Step 4: Simplify right side
    275,725.60x = 103,906,310,038.08
  5. Step 5: Solve for x
    x = 103,906,310,038.08/275,725.60
  6. Step 6: Final answer
    x = 376,846.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.