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Finding the Fourth Proportional to 396,072.90, 594,109.35 and 352,527.30

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Solution

The fourth proportional to 396,072.90, 594,109.35 and 352,527.30 is: 528,790.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,072.90 : 594,109.35 = 352,527.30 : x
  2. Step 2: Convert to fraction form
    396,072.90/594,109.35 = 352,527.30/x
  3. Step 3: Cross multiply
    396,072.90x = 594,109.35 × 352,527.30
  4. Step 4: Simplify right side
    396,072.90x = 209,439,765,060.26
  5. Step 5: Solve for x
    x = 209,439,765,060.26/396,072.90
  6. Step 6: Final answer
    x = 528,790.95

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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.