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Finding the Fourth Proportional to 683,743.60, 1,025,615.40 and 683,743.60

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Solution

The fourth proportional to 683,743.60, 1,025,615.40 and 683,743.60 is: 1,025,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,743.60 : 1,025,615.40 = 683,743.60 : x
  2. Step 2: Convert to fraction form
    683,743.60/1,025,615.40 = 683,743.60/x
  3. Step 3: Cross multiply
    683,743.60x = 1,025,615.40 × 683,743.60
  4. Step 4: Simplify right side
    683,743.60x = 701,257,965,811.44
  5. Step 5: Solve for x
    x = 701,257,965,811.44/683,743.60
  6. Step 6: Final answer
    x = 1,025,615.40

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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.