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Finding the Fourth Proportional to 1,957,739.79, 2,936,767.29 and 743,897.64

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Solution

The fourth proportional to 1,957,739.79, 2,936,767.29 and 743,897.64 is: 1,115,906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957,739.79 : 2,936,767.29 = 743,897.64 : x
  2. Step 2: Convert to fraction form
    1,957,739.79/2,936,767.29 = 743,897.64/x
  3. Step 3: Cross multiply
    1,957,739.79x = 2,936,767.29 × 743,897.64
  4. Step 4: Simplify right side
    1,957,739.79x = 2,184,654,256,260.20
  5. Step 5: Solve for x
    x = 2,184,654,256,260.20/1,957,739.79
  6. Step 6: Final answer
    x = 1,115,906.35

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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.