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Finding the Fourth Proportional to 1,040,269.80, 1,458,343.80 and 1,040,269.80

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Solution

The fourth proportional to 1,040,269.80, 1,458,343.80 and 1,040,269.80 is: 1,458,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,269.80 : 1,458,343.80 = 1,040,269.80 : x
  2. Step 2: Convert to fraction form
    1,040,269.80/1,458,343.80 = 1,040,269.80/x
  3. Step 3: Cross multiply
    1,040,269.80x = 1,458,343.80 × 1,040,269.80
  4. Step 4: Simplify right side
    1,040,269.80x = 1,517,071,013,157.24
  5. Step 5: Solve for x
    x = 1,517,071,013,157.24/1,040,269.80
  6. Step 6: Final answer
    x = 1,458,343.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.