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Finding the Fourth Proportional to 1,295,344.80, 1,939,906.80 and 1,046,512.80

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Solution

The fourth proportional to 1,295,344.80, 1,939,906.80 and 1,046,512.80 is: 1,567,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,344.80 : 1,939,906.80 = 1,046,512.80 : x
  2. Step 2: Convert to fraction form
    1,295,344.80/1,939,906.80 = 1,046,512.80/x
  3. Step 3: Cross multiply
    1,295,344.80x = 1,939,906.80 × 1,046,512.80
  4. Step 4: Simplify right side
    1,295,344.80x = 2,030,137,297,007.04
  5. Step 5: Solve for x
    x = 2,030,137,297,007.04/1,295,344.80
  6. Step 6: Final answer
    x = 1,567,256.30

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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.