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Finding the Fourth Proportional to 5,289,870.93, 7,935,553.62 and 1,694,796.90

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Solution

The fourth proportional to 5,289,870.93, 7,935,553.62 and 1,694,796.90 is: 2,542,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289,870.93 : 7,935,553.62 = 1,694,796.90 : x
  2. Step 2: Convert to fraction form
    5,289,870.93/7,935,553.62 = 1,694,796.90/x
  3. Step 3: Cross multiply
    5,289,870.93x = 7,935,553.62 × 1,694,796.90
  4. Step 4: Simplify right side
    5,289,870.93x = 13,449,151,674,959.78
  5. Step 5: Solve for x
    x = 13,449,151,674,959.78/5,289,870.93
  6. Step 6: Final answer
    x = 2,542,434.75

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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.