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Finding the Fourth Proportional to 416,043.20, 624,064.80 and 248,081.60

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Solution

The fourth proportional to 416,043.20, 624,064.80 and 248,081.60 is: 372,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,043.20 : 624,064.80 = 248,081.60 : x
  2. Step 2: Convert to fraction form
    416,043.20/624,064.80 = 248,081.60/x
  3. Step 3: Cross multiply
    416,043.20x = 624,064.80 × 248,081.60
  4. Step 4: Simplify right side
    416,043.20x = 154,818,994,087.68
  5. Step 5: Solve for x
    x = 154,818,994,087.68/416,043.20
  6. Step 6: Final answer
    x = 372,122.40

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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.