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Finding the Fourth Proportional to 327,683.48, 490,737.90 and 187,015.64

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Solution

The fourth proportional to 327,683.48, 490,737.90 and 187,015.64 is: 280,074.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,683.48 : 490,737.90 = 187,015.64 : x
  2. Step 2: Convert to fraction form
    327,683.48/490,737.90 = 187,015.64/x
  3. Step 3: Cross multiply
    327,683.48x = 490,737.90 × 187,015.64
  4. Step 4: Simplify right side
    327,683.48x = 91,775,662,440.76
  5. Step 5: Solve for x
    x = 91,775,662,440.76/327,683.48
  6. Step 6: Final answer
    x = 280,074.12

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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.