Home / 794,141.70-1,191,212.55-420,893.70

Finding the Fourth Proportional to 794,141.70, 1,191,212.55 and 420,893.70

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Solution

The fourth proportional to 794,141.70, 1,191,212.55 and 420,893.70 is: 631,340.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,141.70 : 1,191,212.55 = 420,893.70 : x
  2. Step 2: Convert to fraction form
    794,141.70/1,191,212.55 = 420,893.70/x
  3. Step 3: Cross multiply
    794,141.70x = 1,191,212.55 × 420,893.70
  4. Step 4: Simplify right side
    794,141.70x = 501,373,857,655.94
  5. Step 5: Solve for x
    x = 501,373,857,655.94/794,141.70
  6. Step 6: Final answer
    x = 631,340.55

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Double scale
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Similar ratio
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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.