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Finding the Fourth Proportional to 359,654.22, 496,321.83 and 198,508.23

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Solution

The fourth proportional to 359,654.22, 496,321.83 and 198,508.23 is: 273,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,654.22 : 496,321.83 = 198,508.23 : x
  2. Step 2: Convert to fraction form
    359,654.22/496,321.83 = 198,508.23/x
  3. Step 3: Cross multiply
    359,654.22x = 496,321.83 × 198,508.23
  4. Step 4: Simplify right side
    359,654.22x = 98,523,967,983.66
  5. Step 5: Solve for x
    x = 98,523,967,983.66/359,654.22
  6. Step 6: Final answer
    x = 273,940.81

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1.5x scale

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.