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Finding the Fourth Proportional to 724,059.10, 1,085,760.60 and 274,630.60

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Solution

The fourth proportional to 724,059.10, 1,085,760.60 and 274,630.60 is: 411,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,059.10 : 1,085,760.60 = 274,630.60 : x
  2. Step 2: Convert to fraction form
    724,059.10/1,085,760.60 = 274,630.60/x
  3. Step 3: Cross multiply
    724,059.10x = 1,085,760.60 × 274,630.60
  4. Step 4: Simplify right side
    724,059.10x = 298,183,085,034.36
  5. Step 5: Solve for x
    x = 298,183,085,034.36/724,059.10
  6. Step 6: Final answer
    x = 411,821.47

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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.