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Finding the Fourth Proportional to 1,943,163.60, 2,913,870.60 and 744,687.60

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Solution

The fourth proportional to 1,943,163.60, 2,913,870.60 and 744,687.60 is: 1,116,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,163.60 : 2,913,870.60 = 744,687.60 : x
  2. Step 2: Convert to fraction form
    1,943,163.60/2,913,870.60 = 744,687.60/x
  3. Step 3: Cross multiply
    1,943,163.60x = 2,913,870.60 × 744,687.60
  4. Step 4: Simplify right side
    1,943,163.60x = 2,169,923,303,824.56
  5. Step 5: Solve for x
    x = 2,169,923,303,824.56/1,943,163.60
  6. Step 6: Final answer
    x = 1,116,696.15

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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.