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Finding the Fourth Proportional to 359,629.71, 496,286.55 and 198,484.75

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Solution

The fourth proportional to 359,629.71, 496,286.55 and 198,484.75 is: 273,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,629.71 : 496,286.55 = 198,484.75 : x
  2. Step 2: Convert to fraction form
    359,629.71/496,286.55 = 198,484.75/x
  3. Step 3: Cross multiply
    359,629.71x = 496,286.55 × 198,484.75
  4. Step 4: Simplify right side
    359,629.71x = 98,505,311,805.11
  5. Step 5: Solve for x
    x = 98,505,311,805.11/359,629.71
  6. Step 6: Final answer
    x = 273,907.60

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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.