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Finding the Fourth Proportional to 561,518.44, 842,861.02 and 325,322.60

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Solution

The fourth proportional to 561,518.44, 842,861.02 and 325,322.60 is: 488,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,518.44 : 842,861.02 = 325,322.60 : x
  2. Step 2: Convert to fraction form
    561,518.44/842,861.02 = 325,322.60/x
  3. Step 3: Cross multiply
    561,518.44x = 842,861.02 × 325,322.60
  4. Step 4: Simplify right side
    561,518.44x = 274,201,738,465.05
  5. Step 5: Solve for x
    x = 274,201,738,465.05/561,518.44
  6. Step 6: Final answer
    x = 488,321.88

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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.