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Finding the Fourth Proportional to 336,278.80, 504,418.20 and 125,905.60

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Solution

The fourth proportional to 336,278.80, 504,418.20 and 125,905.60 is: 188,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,278.80 : 504,418.20 = 125,905.60 : x
  2. Step 2: Convert to fraction form
    336,278.80/504,418.20 = 125,905.60/x
  3. Step 3: Cross multiply
    336,278.80x = 504,418.20 × 125,905.60
  4. Step 4: Simplify right side
    336,278.80x = 63,509,076,121.92
  5. Step 5: Solve for x
    x = 63,509,076,121.92/336,278.80
  6. Step 6: Final answer
    x = 188,858.40

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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.