Home / 613,110.60-919,556.55-388,068.30

Finding the Fourth Proportional to 613,110.60, 919,556.55 and 388,068.30

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Solution

The fourth proportional to 613,110.60, 919,556.55 and 388,068.30 is: 582,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,110.60 : 919,556.55 = 388,068.30 : x
  2. Step 2: Convert to fraction form
    613,110.60/919,556.55 = 388,068.30/x
  3. Step 3: Cross multiply
    613,110.60x = 919,556.55 × 388,068.30
  4. Step 4: Simplify right side
    613,110.60x = 356,850,747,112.37
  5. Step 5: Solve for x
    x = 356,850,747,112.37/613,110.60
  6. Step 6: Final answer
    x = 582,033.24

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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.