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Finding the Fourth Proportional to 6,477,907.60, 9,721,008.60 and 3,782,227.60

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Solution

The fourth proportional to 6,477,907.60, 9,721,008.60 and 3,782,227.60 is: 5,675,762.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477,907.60 : 9,721,008.60 = 3,782,227.60 : x
  2. Step 2: Convert to fraction form
    6,477,907.60/9,721,008.60 = 3,782,227.60/x
  3. Step 3: Cross multiply
    6,477,907.60x = 9,721,008.60 × 3,782,227.60
  4. Step 4: Simplify right side
    6,477,907.60x = 36,767,067,026,757.36
  5. Step 5: Solve for x
    x = 36,767,067,026,757.36/6,477,907.60
  6. Step 6: Final answer
    x = 5,675,762.81

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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.