Home / 451,520.20-677,258.70-151,971.40

Finding the Fourth Proportional to 451,520.20, 677,258.70 and 151,971.40

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Solution

The fourth proportional to 451,520.20, 677,258.70 and 151,971.40 is: 227,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,520.20 : 677,258.70 = 151,971.40 : x
  2. Step 2: Convert to fraction form
    451,520.20/677,258.70 = 151,971.40/x
  3. Step 3: Cross multiply
    451,520.20x = 677,258.70 × 151,971.40
  4. Step 4: Simplify right side
    451,520.20x = 102,923,952,801.18
  5. Step 5: Solve for x
    x = 102,923,952,801.18/451,520.20
  6. Step 6: Final answer
    x = 227,949.83

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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.