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Finding the Fourth Proportional to 444,893.40, 667,275.30 and 129,317.40

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Solution

The fourth proportional to 444,893.40, 667,275.30 and 129,317.40 is: 193,957.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,893.40 : 667,275.30 = 129,317.40 : x
  2. Step 2: Convert to fraction form
    444,893.40/667,275.30 = 129,317.40/x
  3. Step 3: Cross multiply
    444,893.40x = 667,275.30 × 129,317.40
  4. Step 4: Simplify right side
    444,893.40x = 86,290,306,880.22
  5. Step 5: Solve for x
    x = 86,290,306,880.22/444,893.40
  6. Step 6: Final answer
    x = 193,957.26

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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.