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Finding the Fourth Proportional to 325,622.27, 488,503.58 and 100,978.19

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Solution

The fourth proportional to 325,622.27, 488,503.58 and 100,978.19 is: 151,489.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,622.27 : 488,503.58 = 100,978.19 : x
  2. Step 2: Convert to fraction form
    325,622.27/488,503.58 = 100,978.19/x
  3. Step 3: Cross multiply
    325,622.27x = 488,503.58 × 100,978.19
  4. Step 4: Simplify right side
    325,622.27x = 49,328,206,201.40
  5. Step 5: Solve for x
    x = 49,328,206,201.40/325,622.27
  6. Step 6: Final answer
    x = 151,489.04

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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.