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Finding the Fourth Proportional to 363,415.20, 544,928.40 and 126,765.60

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Solution

The fourth proportional to 363,415.20, 544,928.40 and 126,765.60 is: 190,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,415.20 : 544,928.40 = 126,765.60 : x
  2. Step 2: Convert to fraction form
    363,415.20/544,928.40 = 126,765.60/x
  3. Step 3: Cross multiply
    363,415.20x = 544,928.40 × 126,765.60
  4. Step 4: Simplify right side
    363,415.20x = 69,078,175,583.04
  5. Step 5: Solve for x
    x = 69,078,175,583.04/363,415.20
  6. Step 6: Final answer
    x = 190,080.59

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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.