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Finding the Fourth Proportional to 1,993,433.60, 2,991,025.20 and 927,927.20

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Solution

The fourth proportional to 1,993,433.60, 2,991,025.20 and 927,927.20 is: 1,392,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,433.60 : 2,991,025.20 = 927,927.20 : x
  2. Step 2: Convert to fraction form
    1,993,433.60/2,991,025.20 = 927,927.20/x
  3. Step 3: Cross multiply
    1,993,433.60x = 2,991,025.20 × 927,927.20
  4. Step 4: Simplify right side
    1,993,433.60x = 2,775,453,638,965.44
  5. Step 5: Solve for x
    x = 2,775,453,638,965.44/1,993,433.60
  6. Step 6: Final answer
    x = 1,392,298.01

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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.