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Finding the Fourth Proportional to 444,806.40, 667,258.20 and 430,809.60

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Solution

The fourth proportional to 444,806.40, 667,258.20 and 430,809.60 is: 646,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,806.40 : 667,258.20 = 430,809.60 : x
  2. Step 2: Convert to fraction form
    444,806.40/667,258.20 = 430,809.60/x
  3. Step 3: Cross multiply
    444,806.40x = 667,258.20 × 430,809.60
  4. Step 4: Simplify right side
    444,806.40x = 287,461,238,238.72
  5. Step 5: Solve for x
    x = 287,461,238,238.72/444,806.40
  6. Step 6: Final answer
    x = 646,261.47

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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.