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Finding the Fourth Proportional to 444,863.40, 667,295.10 and 423,090.60

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Solution

The fourth proportional to 444,863.40, 667,295.10 and 423,090.60 is: 634,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,863.40 : 667,295.10 = 423,090.60 : x
  2. Step 2: Convert to fraction form
    444,863.40/667,295.10 = 423,090.60/x
  3. Step 3: Cross multiply
    444,863.40x = 667,295.10 × 423,090.60
  4. Step 4: Simplify right side
    444,863.40x = 282,326,284,236.06
  5. Step 5: Solve for x
    x = 282,326,284,236.06/444,863.40
  6. Step 6: Final answer
    x = 634,635.90

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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.