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Finding the Fourth Proportional to 323,532.60, 485,586.90 and 190,246.20

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Solution

The fourth proportional to 323,532.60, 485,586.90 and 190,246.20 is: 285,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,532.60 : 485,586.90 = 190,246.20 : x
  2. Step 2: Convert to fraction form
    323,532.60/485,586.90 = 190,246.20/x
  3. Step 3: Cross multiply
    323,532.60x = 485,586.90 × 190,246.20
  4. Step 4: Simplify right side
    323,532.60x = 92,381,062,494.78
  5. Step 5: Solve for x
    x = 92,381,062,494.78/323,532.60
  6. Step 6: Final answer
    x = 285,538.65

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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.