Home / 1,081,643.58-1,621,321.23-407,433.15

Finding the Fourth Proportional to 1,081,643.58, 1,621,321.23 and 407,433.15

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Solution

The fourth proportional to 1,081,643.58, 1,621,321.23 and 407,433.15 is: 610,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,643.58 : 1,621,321.23 = 407,433.15 : x
  2. Step 2: Convert to fraction form
    1,081,643.58/1,621,321.23 = 407,433.15/x
  3. Step 3: Cross multiply
    1,081,643.58x = 1,621,321.23 × 407,433.15
  4. Step 4: Simplify right side
    1,081,643.58x = 660,580,015,900.78
  5. Step 5: Solve for x
    x = 660,580,015,900.78/1,081,643.58
  6. Step 6: Final answer
    x = 610,718.75

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Double scale
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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.