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Finding the Fourth Proportional to 595,909.20, 893,863.80 and 427,072.80

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Solution

The fourth proportional to 595,909.20, 893,863.80 and 427,072.80 is: 640,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,909.20 : 893,863.80 = 427,072.80 : x
  2. Step 2: Convert to fraction form
    595,909.20/893,863.80 = 427,072.80/x
  3. Step 3: Cross multiply
    595,909.20x = 893,863.80 × 427,072.80
  4. Step 4: Simplify right side
    595,909.20x = 381,744,915,884.64
  5. Step 5: Solve for x
    x = 381,744,915,884.64/595,909.20
  6. Step 6: Final answer
    x = 640,609.20

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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.