Home / 1,906,854.90-2,629,303.30-1,217,620.50

Finding the Fourth Proportional to 1,906,854.90, 2,629,303.30 and 1,217,620.50

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Solution

The fourth proportional to 1,906,854.90, 2,629,303.30 and 1,217,620.50 is: 1,678,939.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906,854.90 : 2,629,303.30 = 1,217,620.50 : x
  2. Step 2: Convert to fraction form
    1,906,854.90/2,629,303.30 = 1,217,620.50/x
  3. Step 3: Cross multiply
    1,906,854.90x = 2,629,303.30 × 1,217,620.50
  4. Step 4: Simplify right side
    1,906,854.90x = 3,201,493,598,797.65
  5. Step 5: Solve for x
    x = 3,201,493,598,797.65/1,906,854.90
  6. Step 6: Final answer
    x = 1,678,939.28

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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.