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Finding the Fourth Proportional to 457,892.21, 631,929.07 and 254,008.86

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Solution

The fourth proportional to 457,892.21, 631,929.07 and 254,008.86 is: 350,553.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,892.21 : 631,929.07 = 254,008.86 : x
  2. Step 2: Convert to fraction form
    457,892.21/631,929.07 = 254,008.86/x
  3. Step 3: Cross multiply
    457,892.21x = 631,929.07 × 254,008.86
  4. Step 4: Simplify right side
    457,892.21x = 160,515,582,671.56
  5. Step 5: Solve for x
    x = 160,515,582,671.56/457,892.21
  6. Step 6: Final answer
    x = 350,553.21

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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.