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Finding the Fourth Proportional to 305,523.20, 458,630.40 and 180,934.40

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Solution

The fourth proportional to 305,523.20, 458,630.40 and 180,934.40 is: 271,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,523.20 : 458,630.40 = 180,934.40 : x
  2. Step 2: Convert to fraction form
    305,523.20/458,630.40 = 180,934.40/x
  3. Step 3: Cross multiply
    305,523.20x = 458,630.40 × 180,934.40
  4. Step 4: Simplify right side
    305,523.20x = 82,982,016,245.76
  5. Step 5: Solve for x
    x = 82,982,016,245.76/305,523.20
  6. Step 6: Final answer
    x = 271,606.27

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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.