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Finding the Fourth Proportional to 416,988, 625,586.49 and 192,505.41

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Solution

The fourth proportional to 416,988, 625,586.49 and 192,505.41 is: 288,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,988 : 625,586.49 = 192,505.41 : x
  2. Step 2: Convert to fraction form
    416,988/625,586.49 = 192,505.41/x
  3. Step 3: Cross multiply
    416,988x = 625,586.49 × 192,505.41
  4. Step 4: Simplify right side
    416,988x = 120,428,783,747.91
  5. Step 5: Solve for x
    x = 120,428,783,747.91/416,988
  6. Step 6: Final answer
    x = 288,806.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.