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Finding the Fourth Proportional to 568,578.60, 784,633.26 and 313,924.20

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Solution

The fourth proportional to 568,578.60, 784,633.26 and 313,924.20 is: 433,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,578.60 : 784,633.26 = 313,924.20 : x
  2. Step 2: Convert to fraction form
    568,578.60/784,633.26 = 313,924.20/x
  3. Step 3: Cross multiply
    568,578.60x = 784,633.26 × 313,924.20
  4. Step 4: Simplify right side
    568,578.60x = 246,315,368,438.89
  5. Step 5: Solve for x
    x = 246,315,368,438.89/568,578.60
  6. Step 6: Final answer
    x = 433,212.52

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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.