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Finding the Fourth Proportional to 400,977.34, 601,577.48 and 325,911.60

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Solution

The fourth proportional to 400,977.34, 601,577.48 and 325,911.60 is: 488,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,977.34 : 601,577.48 = 325,911.60 : x
  2. Step 2: Convert to fraction form
    400,977.34/601,577.48 = 325,911.60/x
  3. Step 3: Cross multiply
    400,977.34x = 601,577.48 × 325,911.60
  4. Step 4: Simplify right side
    400,977.34x = 196,061,079,845.55
  5. Step 5: Solve for x
    x = 196,061,079,845.55/400,977.34
  6. Step 6: Final answer
    x = 488,958.01

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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.