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Finding the Fourth Proportional to 1,416,556, 1,954,847.32 and 780,652

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Solution

The fourth proportional to 1,416,556, 1,954,847.32 and 780,652 is: 1,077,299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,556 : 1,954,847.32 = 780,652 : x
  2. Step 2: Convert to fraction form
    1,416,556/1,954,847.32 = 780,652/x
  3. Step 3: Cross multiply
    1,416,556x = 1,954,847.32 × 780,652
  4. Step 4: Simplify right side
    1,416,556x = 1,526,055,470,052.64
  5. Step 5: Solve for x
    x = 1,526,055,470,052.64/1,416,556
  6. Step 6: Final answer
    x = 1,077,299.78

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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.