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Finding the Fourth Proportional to 1,667,990.94, 2,301,944.48 and 942,844.60

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Solution

The fourth proportional to 1,667,990.94, 2,301,944.48 and 942,844.60 is: 1,301,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667,990.94 : 2,301,944.48 = 942,844.60 : x
  2. Step 2: Convert to fraction form
    1,667,990.94/2,301,944.48 = 942,844.60/x
  3. Step 3: Cross multiply
    1,667,990.94x = 2,301,944.48 × 942,844.60
  4. Step 4: Simplify right side
    1,667,990.94x = 2,170,375,922,467.81
  5. Step 5: Solve for x
    x = 2,170,375,922,467.81/1,667,990.94
  6. Step 6: Final answer
    x = 1,301,191.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.