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Finding the Fourth Proportional to 568,377.64, 784,361.22 and 313,728.92

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Solution

The fourth proportional to 568,377.64, 784,361.22 and 313,728.92 is: 432,945.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,377.64 : 784,361.22 = 313,728.92 : x
  2. Step 2: Convert to fraction form
    568,377.64/784,361.22 = 313,728.92/x
  3. Step 3: Cross multiply
    568,377.64x = 784,361.22 × 313,728.92
  4. Step 4: Simplify right side
    568,377.64x = 246,076,798,440.48
  5. Step 5: Solve for x
    x = 246,076,798,440.48/568,377.64
  6. Step 6: Final answer
    x = 432,945.95

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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.