Home / 388,086.20-582,129.30-341,430.20

Finding the Fourth Proportional to 388,086.20, 582,129.30 and 341,430.20

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Solution

The fourth proportional to 388,086.20, 582,129.30 and 341,430.20 is: 512,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,086.20 : 582,129.30 = 341,430.20 : x
  2. Step 2: Convert to fraction form
    388,086.20/582,129.30 = 341,430.20/x
  3. Step 3: Cross multiply
    388,086.20x = 582,129.30 × 341,430.20
  4. Step 4: Simplify right side
    388,086.20x = 198,756,523,324.86
  5. Step 5: Solve for x
    x = 198,756,523,324.86/388,086.20
  6. Step 6: Final answer
    x = 512,145.30

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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.