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Finding the Fourth Proportional to 394,915.96, 544,762.56 and 242,028.24

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Solution

The fourth proportional to 394,915.96, 544,762.56 and 242,028.24 is: 333,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,915.96 : 544,762.56 = 242,028.24 : x
  2. Step 2: Convert to fraction form
    394,915.96/544,762.56 = 242,028.24/x
  3. Step 3: Cross multiply
    394,915.96x = 544,762.56 × 242,028.24
  4. Step 4: Simplify right side
    394,915.96x = 131,847,923,614.69
  5. Step 5: Solve for x
    x = 131,847,923,614.69/394,915.96
  6. Step 6: Final answer
    x = 333,863.24

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1.5x scale

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.