Home / 511,118.43-705,348.25-281,683.98

Finding the Fourth Proportional to 511,118.43, 705,348.25 and 281,683.98

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Solution

The fourth proportional to 511,118.43, 705,348.25 and 281,683.98 is: 388,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,118.43 : 705,348.25 = 281,683.98 : x
  2. Step 2: Convert to fraction form
    511,118.43/705,348.25 = 281,683.98/x
  3. Step 3: Cross multiply
    511,118.43x = 705,348.25 × 281,683.98
  4. Step 4: Simplify right side
    511,118.43x = 198,685,300,103.27
  5. Step 5: Solve for x
    x = 198,685,300,103.27/511,118.43
  6. Step 6: Final answer
    x = 388,726.54

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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.