Home / 654,450.24-981,674.88-211,218.24

Finding the Fourth Proportional to 654,450.24, 981,674.88 and 211,218.24

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Solution

The fourth proportional to 654,450.24, 981,674.88 and 211,218.24 is: 316,827.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,450.24 : 981,674.88 = 211,218.24 : x
  2. Step 2: Convert to fraction form
    654,450.24/981,674.88 = 211,218.24/x
  3. Step 3: Cross multiply
    654,450.24x = 981,674.88 × 211,218.24
  4. Step 4: Simplify right side
    654,450.24x = 207,347,640,405.81
  5. Step 5: Solve for x
    x = 207,347,640,405.81/654,450.24
  6. Step 6: Final answer
    x = 316,827.21

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Double scale
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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.