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Finding the Fourth Proportional to 1,947,788.80, 2,920,300.80 and 883,340.80

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Solution

The fourth proportional to 1,947,788.80, 2,920,300.80 and 883,340.80 is: 1,324,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,788.80 : 2,920,300.80 = 883,340.80 : x
  2. Step 2: Convert to fraction form
    1,947,788.80/2,920,300.80 = 883,340.80/x
  3. Step 3: Cross multiply
    1,947,788.80x = 2,920,300.80 × 883,340.80
  4. Step 4: Simplify right side
    1,947,788.80x = 2,579,620,844,912.64
  5. Step 5: Solve for x
    x = 2,579,620,844,912.64/1,947,788.80
  6. Step 6: Final answer
    x = 1,324,384.27

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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.