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Finding the Fourth Proportional to 265,399.20, 397,839.60 and 237,405.60

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Solution

The fourth proportional to 265,399.20, 397,839.60 and 237,405.60 is: 355,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,399.20 : 397,839.60 = 237,405.60 : x
  2. Step 2: Convert to fraction form
    265,399.20/397,839.60 = 237,405.60/x
  3. Step 3: Cross multiply
    265,399.20x = 397,839.60 × 237,405.60
  4. Step 4: Simplify right side
    265,399.20x = 94,449,348,941.76
  5. Step 5: Solve for x
    x = 94,449,348,941.76/265,399.20
  6. Step 6: Final answer
    x = 355,876.54

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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.