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Finding the Fourth Proportional to 6,664,791.78, 9,995,119.74 and 2,404,405.62

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Solution

The fourth proportional to 6,664,791.78, 9,995,119.74 and 2,404,405.62 is: 3,605,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664,791.78 : 9,995,119.74 = 2,404,405.62 : x
  2. Step 2: Convert to fraction form
    6,664,791.78/9,995,119.74 = 2,404,405.62/x
  3. Step 3: Cross multiply
    6,664,791.78x = 9,995,119.74 × 2,404,405.62
  4. Step 4: Simplify right side
    6,664,791.78x = 24,032,322,075,428.94
  5. Step 5: Solve for x
    x = 24,032,322,075,428.94/6,664,791.78
  6. Step 6: Final answer
    x = 3,605,862.40

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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.