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Finding the Fourth Proportional to 934,321.86, 1,396,362.69 and 682,133.40

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Solution

The fourth proportional to 934,321.86, 1,396,362.69 and 682,133.40 is: 1,019,462.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,321.86 : 1,396,362.69 = 682,133.40 : x
  2. Step 2: Convert to fraction form
    934,321.86/1,396,362.69 = 682,133.40/x
  3. Step 3: Cross multiply
    934,321.86x = 1,396,362.69 × 682,133.40
  4. Step 4: Simplify right side
    934,321.86x = 952,505,629,362.85
  5. Step 5: Solve for x
    x = 952,505,629,362.85/934,321.86
  6. Step 6: Final answer
    x = 1,019,462.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.