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Finding the Fourth Proportional to 343,906.40, 515,859.60 and 325,535.60

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Solution

The fourth proportional to 343,906.40, 515,859.60 and 325,535.60 is: 488,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,906.40 : 515,859.60 = 325,535.60 : x
  2. Step 2: Convert to fraction form
    343,906.40/515,859.60 = 325,535.60/x
  3. Step 3: Cross multiply
    343,906.40x = 515,859.60 × 325,535.60
  4. Step 4: Simplify right side
    343,906.40x = 167,930,664,401.76
  5. Step 5: Solve for x
    x = 167,930,664,401.76/343,906.40
  6. Step 6: Final answer
    x = 488,303.40

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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.