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Finding the Fourth Proportional to 359,391.49, 495,921.94 and 198,246.53

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Solution

The fourth proportional to 359,391.49, 495,921.94 and 198,246.53 is: 273,559.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,391.49 : 495,921.94 = 198,246.53 : x
  2. Step 2: Convert to fraction form
    359,391.49/495,921.94 = 198,246.53/x
  3. Step 3: Cross multiply
    359,391.49x = 495,921.94 × 198,246.53
  4. Step 4: Simplify right side
    359,391.49x = 98,314,800,285.03
  5. Step 5: Solve for x
    x = 98,314,800,285.03/359,391.49
  6. Step 6: Final answer
    x = 273,559.07

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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.