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Finding the Fourth Proportional to 568,153.20, 784,032.60 and 313,504.56

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Solution

The fourth proportional to 568,153.20, 784,032.60 and 313,504.56 is: 432,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,153.20 : 784,032.60 = 313,504.56 : x
  2. Step 2: Convert to fraction form
    568,153.20/784,032.60 = 313,504.56/x
  3. Step 3: Cross multiply
    568,153.20x = 784,032.60 × 313,504.56
  4. Step 4: Simplify right side
    568,153.20x = 245,797,795,288.66
  5. Step 5: Solve for x
    x = 245,797,795,288.66/568,153.20
  6. Step 6: Final answer
    x = 432,625.91

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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.