Home / 353,578.20-487,989.35-198,546.90

Finding the Fourth Proportional to 353,578.20, 487,989.35 and 198,546.90

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Solution

The fourth proportional to 353,578.20, 487,989.35 and 198,546.90 is: 274,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,578.20 : 487,989.35 = 198,546.90 : x
  2. Step 2: Convert to fraction form
    353,578.20/487,989.35 = 198,546.90/x
  3. Step 3: Cross multiply
    353,578.20x = 487,989.35 × 198,546.90
  4. Step 4: Simplify right side
    353,578.20x = 96,888,772,675.52
  5. Step 5: Solve for x
    x = 96,888,772,675.52/353,578.20
  6. Step 6: Final answer
    x = 274,023.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.