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Finding the Fourth Proportional to 5,339,907.94, 8,009,912.13 and 1,296,431.29

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Solution

The fourth proportional to 5,339,907.94, 8,009,912.13 and 1,296,431.29 is: 1,944,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339,907.94 : 8,009,912.13 = 1,296,431.29 : x
  2. Step 2: Convert to fraction form
    5,339,907.94/8,009,912.13 = 1,296,431.29/x
  3. Step 3: Cross multiply
    5,339,907.94x = 8,009,912.13 × 1,296,431.29
  4. Step 4: Simplify right side
    5,339,907.94x = 10,384,300,715,482.55
  5. Step 5: Solve for x
    x = 10,384,300,715,482.55/5,339,907.94
  6. Step 6: Final answer
    x = 1,944,659.13

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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.