Home / 457,324.33-685,986.90-190,939.63

Finding the Fourth Proportional to 457,324.33, 685,986.90 and 190,939.63

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Solution

The fourth proportional to 457,324.33, 685,986.90 and 190,939.63 is: 286,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,324.33 : 685,986.90 = 190,939.63 : x
  2. Step 2: Convert to fraction form
    457,324.33/685,986.90 = 190,939.63/x
  3. Step 3: Cross multiply
    457,324.33x = 685,986.90 × 190,939.63
  4. Step 4: Simplify right side
    457,324.33x = 130,982,084,870.85
  5. Step 5: Solve for x
    x = 130,982,084,870.85/457,324.33
  6. Step 6: Final answer
    x = 286,409.61

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Similar ratio
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1.5x scale

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.