Home / 1,405,998.75-2,109,357.77-408,726.75

Finding the Fourth Proportional to 1,405,998.75, 2,109,357.77 and 408,726.75

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Solution

The fourth proportional to 1,405,998.75, 2,109,357.77 and 408,726.75 is: 613,194.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,998.75 : 2,109,357.77 = 408,726.75 : x
  2. Step 2: Convert to fraction form
    1,405,998.75/2,109,357.77 = 408,726.75/x
  3. Step 3: Cross multiply
    1,405,998.75x = 2,109,357.77 × 408,726.75
  4. Step 4: Simplify right side
    1,405,998.75x = 862,150,943,875.71
  5. Step 5: Solve for x
    x = 862,150,943,875.71/1,405,998.75
  6. Step 6: Final answer
    x = 613,194.67

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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.