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Finding the Fourth Proportional to 396,423.81, 594,630.53 and 96,907

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Solution

The fourth proportional to 396,423.81, 594,630.53 and 96,907 is: 145,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,423.81 : 594,630.53 = 96,907 : x
  2. Step 2: Convert to fraction form
    396,423.81/594,630.53 = 96,907/x
  3. Step 3: Cross multiply
    396,423.81x = 594,630.53 × 96,907
  4. Step 4: Simplify right side
    396,423.81x = 57,623,860,770.71
  5. Step 5: Solve for x
    x = 57,623,860,770.71/396,423.81
  6. Step 6: Final answer
    x = 145,359.23

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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.