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Finding the Fourth Proportional to 308,683.60, 462,766.20 and 160,939.60

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Solution

The fourth proportional to 308,683.60, 462,766.20 and 160,939.60 is: 241,274.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,683.60 : 462,766.20 = 160,939.60 : x
  2. Step 2: Convert to fraction form
    308,683.60/462,766.20 = 160,939.60/x
  3. Step 3: Cross multiply
    308,683.60x = 462,766.20 × 160,939.60
  4. Step 4: Simplify right side
    308,683.60x = 74,477,407,121.52
  5. Step 5: Solve for x
    x = 74,477,407,121.52/308,683.60
  6. Step 6: Final answer
    x = 241,274.26

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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.