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Finding the Fourth Proportional to 396,553.50, 546,994.80 and 235,294.38

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Solution

The fourth proportional to 396,553.50, 546,994.80 and 235,294.38 is: 324,558.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,553.50 : 546,994.80 = 235,294.38 : x
  2. Step 2: Convert to fraction form
    396,553.50/546,994.80 = 235,294.38/x
  3. Step 3: Cross multiply
    396,553.50x = 546,994.80 × 235,294.38
  4. Step 4: Simplify right side
    396,553.50x = 128,704,802,329.22
  5. Step 5: Solve for x
    x = 128,704,802,329.22/396,553.50
  6. Step 6: Final answer
    x = 324,558.48

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1.5x scale

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.