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Finding the Fourth Proportional to 546,930.96, 820,391.58 and 191,861.79

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Solution

The fourth proportional to 546,930.96, 820,391.58 and 191,861.79 is: 287,790.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,930.96 : 820,391.58 = 191,861.79 : x
  2. Step 2: Convert to fraction form
    546,930.96/820,391.58 = 191,861.79/x
  3. Step 3: Cross multiply
    546,930.96x = 820,391.58 × 191,861.79
  4. Step 4: Simplify right side
    546,930.96x = 157,401,797,039.73
  5. Step 5: Solve for x
    x = 157,401,797,039.73/546,930.96
  6. Step 6: Final answer
    x = 287,790.98

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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.