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Finding the Fourth Proportional to 655,170.84, 982,996.56 and 276,186.96

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Solution

The fourth proportional to 655,170.84, 982,996.56 and 276,186.96 is: 414,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,170.84 : 982,996.56 = 276,186.96 : x
  2. Step 2: Convert to fraction form
    655,170.84/982,996.56 = 276,186.96/x
  3. Step 3: Cross multiply
    655,170.84x = 982,996.56 × 276,186.96
  4. Step 4: Simplify right side
    655,170.84x = 271,490,831,596.86
  5. Step 5: Solve for x
    x = 271,490,831,596.86/655,170.84
  6. Step 6: Final answer
    x = 414,381.74

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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.