Home / 511,247.10-705,561.60-281,845.16

Finding the Fourth Proportional to 511,247.10, 705,561.60 and 281,845.16

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Solution

The fourth proportional to 511,247.10, 705,561.60 and 281,845.16 is: 388,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,247.10 : 705,561.60 = 281,845.16 : x
  2. Step 2: Convert to fraction form
    511,247.10/705,561.60 = 281,845.16/x
  3. Step 3: Cross multiply
    511,247.10x = 705,561.60 × 281,845.16
  4. Step 4: Simplify right side
    511,247.10x = 198,859,118,514.05
  5. Step 5: Solve for x
    x = 198,859,118,514.05/511,247.10
  6. Step 6: Final answer
    x = 388,968.70

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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.