Home / 1,235,902.10-1,853,853.15-394,481.30

Finding the Fourth Proportional to 1,235,902.10, 1,853,853.15 and 394,481.30

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Solution

The fourth proportional to 1,235,902.10, 1,853,853.15 and 394,481.30 is: 591,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,902.10 : 1,853,853.15 = 394,481.30 : x
  2. Step 2: Convert to fraction form
    1,235,902.10/1,853,853.15 = 394,481.30/x
  3. Step 3: Cross multiply
    1,235,902.10x = 1,853,853.15 × 394,481.30
  4. Step 4: Simplify right side
    1,235,902.10x = 731,310,400,621.10
  5. Step 5: Solve for x
    x = 731,310,400,621.10/1,235,902.10
  6. Step 6: Final answer
    x = 591,721.95

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Double scale
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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.