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Finding the Fourth Proportional to 1,397,550.76, 1,928,626.58 and 793,971.88

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Solution

The fourth proportional to 1,397,550.76, 1,928,626.58 and 793,971.88 is: 1,095,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,550.76 : 1,928,626.58 = 793,971.88 : x
  2. Step 2: Convert to fraction form
    1,397,550.76/1,928,626.58 = 793,971.88/x
  3. Step 3: Cross multiply
    1,397,550.76x = 1,928,626.58 × 793,971.88
  4. Step 4: Simplify right side
    1,397,550.76x = 1,531,275,271,540.57
  5. Step 5: Solve for x
    x = 1,531,275,271,540.57/1,397,550.76
  6. Step 6: Final answer
    x = 1,095,684.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.