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Finding the Fourth Proportional to 360,269.48, 540,321.96 and 135,653.60

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Solution

The fourth proportional to 360,269.48, 540,321.96 and 135,653.60 is: 203,449.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,269.48 : 540,321.96 = 135,653.60 : x
  2. Step 2: Convert to fraction form
    360,269.48/540,321.96 = 135,653.60/x
  3. Step 3: Cross multiply
    360,269.48x = 540,321.96 × 135,653.60
  4. Step 4: Simplify right side
    360,269.48x = 73,296,619,033.06
  5. Step 5: Solve for x
    x = 73,296,619,033.06/360,269.48
  6. Step 6: Final answer
    x = 203,449.43

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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.