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Finding the Fourth Proportional to 568,136.76, 784,002.50 and 326,249.16

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Solution

The fourth proportional to 568,136.76, 784,002.50 and 326,249.16 is: 450,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,136.76 : 784,002.50 = 326,249.16 : x
  2. Step 2: Convert to fraction form
    568,136.76/784,002.50 = 326,249.16/x
  3. Step 3: Cross multiply
    568,136.76x = 784,002.50 × 326,249.16
  4. Step 4: Simplify right side
    568,136.76x = 255,780,157,062.90
  5. Step 5: Solve for x
    x = 255,780,157,062.90/568,136.76
  6. Step 6: Final answer
    x = 450,208.78

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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.