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Finding the Fourth Proportional to 359,418.76, 495,976.62 and 198,274.12

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Solution

The fourth proportional to 359,418.76, 495,976.62 and 198,274.12 is: 273,606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,418.76 : 495,976.62 = 198,274.12 : x
  2. Step 2: Convert to fraction form
    359,418.76/495,976.62 = 198,274.12/x
  3. Step 3: Cross multiply
    359,418.76x = 495,976.62 × 198,274.12
  4. Step 4: Simplify right side
    359,418.76x = 98,339,327,871.07
  5. Step 5: Solve for x
    x = 98,339,327,871.07/359,418.76
  6. Step 6: Final answer
    x = 273,606.55

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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.