Home / 1,128,796.70-1,693,195.05-455,200.70

Finding the Fourth Proportional to 1,128,796.70, 1,693,195.05 and 455,200.70

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Solution

The fourth proportional to 1,128,796.70, 1,693,195.05 and 455,200.70 is: 682,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,796.70 : 1,693,195.05 = 455,200.70 : x
  2. Step 2: Convert to fraction form
    1,128,796.70/1,693,195.05 = 455,200.70/x
  3. Step 3: Cross multiply
    1,128,796.70x = 1,693,195.05 × 455,200.70
  4. Step 4: Simplify right side
    1,128,796.70x = 770,743,571,996.54
  5. Step 5: Solve for x
    x = 770,743,571,996.54/1,128,796.70
  6. Step 6: Final answer
    x = 682,801.05

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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.