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Finding the Fourth Proportional to 359,628.81, 496,285.32 and 198,483.86

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Solution

The fourth proportional to 359,628.81, 496,285.32 and 198,483.86 is: 273,906.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,628.81 : 496,285.32 = 198,483.86 : x
  2. Step 2: Convert to fraction form
    359,628.81/496,285.32 = 198,483.86/x
  3. Step 3: Cross multiply
    359,628.81x = 496,285.32 × 198,483.86
  4. Step 4: Simplify right side
    359,628.81x = 98,504,622,501.09
  5. Step 5: Solve for x
    x = 98,504,622,501.09/359,628.81
  6. Step 6: Final answer
    x = 273,906.37

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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.