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Finding the Fourth Proportional to 568,936.40, 853,404.60 and 289,000.40

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Solution

The fourth proportional to 568,936.40, 853,404.60 and 289,000.40 is: 433,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,936.40 : 853,404.60 = 289,000.40 : x
  2. Step 2: Convert to fraction form
    568,936.40/853,404.60 = 289,000.40/x
  3. Step 3: Cross multiply
    568,936.40x = 853,404.60 × 289,000.40
  4. Step 4: Simplify right side
    568,936.40x = 246,634,270,761.84
  5. Step 5: Solve for x
    x = 246,634,270,761.84/568,936.40
  6. Step 6: Final answer
    x = 433,500.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.