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Finding the Fourth Proportional to 432,080.20, 648,120.30 and 325,635.40

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Solution

The fourth proportional to 432,080.20, 648,120.30 and 325,635.40 is: 488,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,080.20 : 648,120.30 = 325,635.40 : x
  2. Step 2: Convert to fraction form
    432,080.20/648,120.30 = 325,635.40/x
  3. Step 3: Cross multiply
    432,080.20x = 648,120.30 × 325,635.40
  4. Step 4: Simplify right side
    432,080.20x = 211,050,913,138.62
  5. Step 5: Solve for x
    x = 211,050,913,138.62/432,080.20
  6. Step 6: Final answer
    x = 488,453.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.