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Finding the Fourth Proportional to 1,416,510, 1,954,783.80 and 780,606

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Solution

The fourth proportional to 1,416,510, 1,954,783.80 and 780,606 is: 1,077,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,510 : 1,954,783.80 = 780,606 : x
  2. Step 2: Convert to fraction form
    1,416,510/1,954,783.80 = 780,606/x
  3. Step 3: Cross multiply
    1,416,510x = 1,954,783.80 × 780,606
  4. Step 4: Simplify right side
    1,416,510x = 1,525,915,962,982.80
  5. Step 5: Solve for x
    x = 1,525,915,962,982.80/1,416,510
  6. Step 6: Final answer
    x = 1,077,236.28

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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.