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Finding the Fourth Proportional to 353,240.80, 529,861.20 and 314,533.60

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Solution

The fourth proportional to 353,240.80, 529,861.20 and 314,533.60 is: 471,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,240.80 : 529,861.20 = 314,533.60 : x
  2. Step 2: Convert to fraction form
    353,240.80/529,861.20 = 314,533.60/x
  3. Step 3: Cross multiply
    353,240.80x = 529,861.20 × 314,533.60
  4. Step 4: Simplify right side
    353,240.80x = 166,659,150,736.32
  5. Step 5: Solve for x
    x = 166,659,150,736.32/353,240.80
  6. Step 6: Final answer
    x = 471,800.40

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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.