Home / 460,778.41-690,255.23-217,286.09

Finding the Fourth Proportional to 460,778.41, 690,255.23 and 217,286.09

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Solution

The fourth proportional to 460,778.41, 690,255.23 and 217,286.09 is: 325,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,778.41 : 690,255.23 = 217,286.09 : x
  2. Step 2: Convert to fraction form
    460,778.41/690,255.23 = 217,286.09/x
  3. Step 3: Cross multiply
    460,778.41x = 690,255.23 × 217,286.09
  4. Step 4: Simplify right side
    460,778.41x = 149,982,858,942.32
  5. Step 5: Solve for x
    x = 149,982,858,942.32/460,778.41
  6. Step 6: Final answer
    x = 325,498.89

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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.