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Finding the Fourth Proportional to 325,671.20, 488,276.40 and 125,914.40

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Solution

The fourth proportional to 325,671.20, 488,276.40 and 125,914.40 is: 188,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,671.20 : 488,276.40 = 125,914.40 : x
  2. Step 2: Convert to fraction form
    325,671.20/488,276.40 = 125,914.40/x
  3. Step 3: Cross multiply
    325,671.20x = 488,276.40 × 125,914.40
  4. Step 4: Simplify right side
    325,671.20x = 61,481,029,940.16
  5. Step 5: Solve for x
    x = 61,481,029,940.16/325,671.20
  6. Step 6: Final answer
    x = 188,782.52

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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.