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Finding the Fourth Proportional to 353,485.44, 529,732.80 and 274,233.60

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Solution

The fourth proportional to 353,485.44, 529,732.80 and 274,233.60 is: 410,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,485.44 : 529,732.80 = 274,233.60 : x
  2. Step 2: Convert to fraction form
    353,485.44/529,732.80 = 274,233.60/x
  3. Step 3: Cross multiply
    353,485.44x = 529,732.80 × 274,233.60
  4. Step 4: Simplify right side
    353,485.44x = 145,270,532,782.08
  5. Step 5: Solve for x
    x = 145,270,532,782.08/353,485.44
  6. Step 6: Final answer
    x = 410,966.10

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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.