Home / 2,618,890.50-3,928,501.80-821,844.84

Finding the Fourth Proportional to 2,618,890.50, 3,928,501.80 and 821,844.84

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Solution

The fourth proportional to 2,618,890.50, 3,928,501.80 and 821,844.84 is: 1,232,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,890.50 : 3,928,501.80 = 821,844.84 : x
  2. Step 2: Convert to fraction form
    2,618,890.50/3,928,501.80 = 821,844.84/x
  3. Step 3: Cross multiply
    2,618,890.50x = 3,928,501.80 × 821,844.84
  4. Step 4: Simplify right side
    2,618,890.50x = 3,228,618,933,260.71
  5. Step 5: Solve for x
    x = 3,228,618,933,260.71/2,618,890.50
  6. Step 6: Final answer
    x = 1,232,819.37

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1.5x scale

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.