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Finding the Fourth Proportional to 359,695.30, 496,379.61 and 198,550.45

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Solution

The fourth proportional to 359,695.30, 496,379.61 and 198,550.45 is: 273,999.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,695.30 : 496,379.61 = 198,550.45 : x
  2. Step 2: Convert to fraction form
    359,695.30/496,379.61 = 198,550.45/x
  3. Step 3: Cross multiply
    359,695.30x = 496,379.61 × 198,550.45
  4. Step 4: Simplify right side
    359,695.30x = 98,556,394,936.32
  5. Step 5: Solve for x
    x = 98,556,394,936.32/359,695.30
  6. Step 6: Final answer
    x = 273,999.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.