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Finding the Fourth Proportional to 352,364.40, 529,583.40 and 306,745.20

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Solution

The fourth proportional to 352,364.40, 529,583.40 and 306,745.20 is: 461,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,364.40 : 529,583.40 = 306,745.20 : x
  2. Step 2: Convert to fraction form
    352,364.40/529,583.40 = 306,745.20/x
  3. Step 3: Cross multiply
    352,364.40x = 529,583.40 × 306,745.20
  4. Step 4: Simplify right side
    352,364.40x = 162,447,165,949.68
  5. Step 5: Solve for x
    x = 162,447,165,949.68/352,364.40
  6. Step 6: Final answer
    x = 461,020.37

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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.