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Finding the Fourth Proportional to 442,930.96, 611,236.20 and 241,728.40

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Solution

The fourth proportional to 442,930.96, 611,236.20 and 241,728.40 is: 333,580.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,930.96 : 611,236.20 = 241,728.40 : x
  2. Step 2: Convert to fraction form
    442,930.96/611,236.20 = 241,728.40/x
  3. Step 3: Cross multiply
    442,930.96x = 611,236.20 × 241,728.40
  4. Step 4: Simplify right side
    442,930.96x = 147,753,148,648.08
  5. Step 5: Solve for x
    x = 147,753,148,648.08/442,930.96
  6. Step 6: Final answer
    x = 333,580.54

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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.