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Finding the Fourth Proportional to 655,061.74, 982,008.22 and 255,609.60

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Solution

The fourth proportional to 655,061.74, 982,008.22 and 255,609.60 is: 383,186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,061.74 : 982,008.22 = 255,609.60 : x
  2. Step 2: Convert to fraction form
    655,061.74/982,008.22 = 255,609.60/x
  3. Step 3: Cross multiply
    655,061.74x = 982,008.22 × 255,609.60
  4. Step 4: Simplify right side
    655,061.74x = 251,010,728,310.91
  5. Step 5: Solve for x
    x = 251,010,728,310.91/655,061.74
  6. Step 6: Final answer
    x = 383,186.37

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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.