Home / 2,535,478.60-3,498,940.38-1,389,556.21

Finding the Fourth Proportional to 2,535,478.60, 3,498,940.38 and 1,389,556.21

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Solution

The fourth proportional to 2,535,478.60, 3,498,940.38 and 1,389,556.21 is: 1,917,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,535,478.60 : 3,498,940.38 = 1,389,556.21 : x
  2. Step 2: Convert to fraction form
    2,535,478.60/3,498,940.38 = 1,389,556.21/x
  3. Step 3: Cross multiply
    2,535,478.60x = 3,498,940.38 × 1,389,556.21
  4. Step 4: Simplify right side
    2,535,478.60x = 4,861,974,333,448.76
  5. Step 5: Solve for x
    x = 4,861,974,333,448.76/2,535,478.60
  6. Step 6: Final answer
    x = 1,917,576.56

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1.5x scale

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.