Home / 1,189,231.93-1,641,144.36-645,367.56

Finding the Fourth Proportional to 1,189,231.93, 1,641,144.36 and 645,367.56

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Solution

The fourth proportional to 1,189,231.93, 1,641,144.36 and 645,367.56 is: 890,609.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,231.93 : 1,641,144.36 = 645,367.56 : x
  2. Step 2: Convert to fraction form
    1,189,231.93/1,641,144.36 = 645,367.56/x
  3. Step 3: Cross multiply
    1,189,231.93x = 1,641,144.36 × 645,367.56
  4. Step 4: Simplify right side
    1,189,231.93x = 1,059,141,331,220.96
  5. Step 5: Solve for x
    x = 1,059,141,331,220.96/1,189,231.93
  6. Step 6: Final answer
    x = 890,609.56

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Double scale
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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.