Home / 388,125.10-582,187.65-198,512.20

Finding the Fourth Proportional to 388,125.10, 582,187.65 and 198,512.20

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Solution

The fourth proportional to 388,125.10, 582,187.65 and 198,512.20 is: 297,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,125.10 : 582,187.65 = 198,512.20 : x
  2. Step 2: Convert to fraction form
    388,125.10/582,187.65 = 198,512.20/x
  3. Step 3: Cross multiply
    388,125.10x = 582,187.65 × 198,512.20
  4. Step 4: Simplify right side
    388,125.10x = 115,571,351,214.33
  5. Step 5: Solve for x
    x = 115,571,351,214.33/388,125.10
  6. Step 6: Final answer
    x = 297,768.30

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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.