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Finding the Fourth Proportional to 395,061.84, 591,213.56 and 323,153.36

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Solution

The fourth proportional to 395,061.84, 591,213.56 and 323,153.36 is: 483,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,061.84 : 591,213.56 = 323,153.36 : x
  2. Step 2: Convert to fraction form
    395,061.84/591,213.56 = 323,153.36/x
  3. Step 3: Cross multiply
    395,061.84x = 591,213.56 × 323,153.36
  4. Step 4: Simplify right side
    395,061.84x = 191,052,648,391.56
  5. Step 5: Solve for x
    x = 191,052,648,391.56/395,061.84
  6. Step 6: Final answer
    x = 483,601.88

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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.