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Finding the Fourth Proportional to 2,986,978.50, 4,122,341.37 and 1,841,029.38

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Solution

The fourth proportional to 2,986,978.50, 4,122,341.37 and 1,841,029.38 is: 2,540,812.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,978.50 : 4,122,341.37 = 1,841,029.38 : x
  2. Step 2: Convert to fraction form
    2,986,978.50/4,122,341.37 = 1,841,029.38/x
  3. Step 3: Cross multiply
    2,986,978.50x = 4,122,341.37 × 1,841,029.38
  4. Step 4: Simplify right side
    2,986,978.50x = 7,589,351,576,559.45
  5. Step 5: Solve for x
    x = 7,589,351,576,559.45/2,986,978.50
  6. Step 6: Final answer
    x = 2,540,812.25

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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.