Home / 511,143.26-705,382.37-281,708.73

Finding the Fourth Proportional to 511,143.26, 705,382.37 and 281,708.73

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Solution

The fourth proportional to 511,143.26, 705,382.37 and 281,708.73 is: 388,760.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,143.26 : 705,382.37 = 281,708.73 : x
  2. Step 2: Convert to fraction form
    511,143.26/705,382.37 = 281,708.73/x
  3. Step 3: Cross multiply
    511,143.26x = 705,382.37 × 281,708.73
  4. Step 4: Simplify right side
    511,143.26x = 198,712,371,972.00
  5. Step 5: Solve for x
    x = 198,712,371,972.00/511,143.26
  6. Step 6: Final answer
    x = 388,760.62

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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.