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Finding the Fourth Proportional to 298,020.56, 411,236.04 and 170,683.60

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Solution

The fourth proportional to 298,020.56, 411,236.04 and 170,683.60 is: 235,524.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,020.56 : 411,236.04 = 170,683.60 : x
  2. Step 2: Convert to fraction form
    298,020.56/411,236.04 = 170,683.60/x
  3. Step 3: Cross multiply
    298,020.56x = 411,236.04 × 170,683.60
  4. Step 4: Simplify right side
    298,020.56x = 70,191,247,756.94
  5. Step 5: Solve for x
    x = 70,191,247,756.94/298,020.56
  6. Step 6: Final answer
    x = 235,524.85

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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.