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Finding the Fourth Proportional to 458,665.73, 632,979.71 and 254,717.55

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Solution

The fourth proportional to 458,665.73, 632,979.71 and 254,717.55 is: 351,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,665.73 : 632,979.71 = 254,717.55 : x
  2. Step 2: Convert to fraction form
    458,665.73/632,979.71 = 254,717.55/x
  3. Step 3: Cross multiply
    458,665.73x = 632,979.71 × 254,717.55
  4. Step 4: Simplify right side
    458,665.73x = 161,231,043,548.86
  5. Step 5: Solve for x
    x = 161,231,043,548.86/458,665.73
  6. Step 6: Final answer
    x = 351,521.89

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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.