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Finding the Fourth Proportional to 339,603.30, 508,739.40 and 197,150.00

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Solution

The fourth proportional to 339,603.30, 508,739.40 and 197,150.00 is: 295,338.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,603.30 : 508,739.40 = 197,150.00 : x
  2. Step 2: Convert to fraction form
    339,603.30/508,739.40 = 197,150.00/x
  3. Step 3: Cross multiply
    339,603.30x = 508,739.40 × 197,150.00
  4. Step 4: Simplify right side
    339,603.30x = 100,297,970,166.30
  5. Step 5: Solve for x
    x = 100,297,970,166.30/339,603.30
  6. Step 6: Final answer
    x = 295,338.62

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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.