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Finding the Fourth Proportional to 1,416,571, 1,954,867.98 and 780,667

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Solution

The fourth proportional to 1,416,571, 1,954,867.98 and 780,667 is: 1,077,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,571 : 1,954,867.98 = 780,667 : x
  2. Step 2: Convert to fraction form
    1,416,571/1,954,867.98 = 780,667/x
  3. Step 3: Cross multiply
    1,416,571x = 1,954,867.98 × 780,667
  4. Step 4: Simplify right side
    1,416,571x = 1,526,100,921,342.66
  5. Step 5: Solve for x
    x = 1,526,100,921,342.66/1,416,571
  6. Step 6: Final answer
    x = 1,077,320.46

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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.