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Finding the Fourth Proportional to 568,561.02, 784,613.94 and 326,890.80

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Solution

The fourth proportional to 568,561.02, 784,613.94 and 326,890.80 is: 451,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,561.02 : 784,613.94 = 326,890.80 : x
  2. Step 2: Convert to fraction form
    568,561.02/784,613.94 = 326,890.80/x
  3. Step 3: Cross multiply
    568,561.02x = 784,613.94 × 326,890.80
  4. Step 4: Simplify right side
    568,561.02x = 256,483,078,537.75
  5. Step 5: Solve for x
    x = 256,483,078,537.75/568,561.02
  6. Step 6: Final answer
    x = 451,109.15

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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.