Home / 511,239.15-705,481.52-281,751.57

Finding the Fourth Proportional to 511,239.15, 705,481.52 and 281,751.57

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Solution

The fourth proportional to 511,239.15, 705,481.52 and 281,751.57 is: 388,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,239.15 : 705,481.52 = 281,751.57 : x
  2. Step 2: Convert to fraction form
    511,239.15/705,481.52 = 281,751.57/x
  3. Step 3: Cross multiply
    511,239.15x = 705,481.52 × 281,751.57
  4. Step 4: Simplify right side
    511,239.15x = 198,770,524,457.23
  5. Step 5: Solve for x
    x = 198,770,524,457.23/511,239.15
  6. Step 6: Final answer
    x = 388,801.45

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1.5x scale

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.