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Finding the Fourth Proportional to 416,076.60, 624,114.90 and 398,580.60

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Solution

The fourth proportional to 416,076.60, 624,114.90 and 398,580.60 is: 597,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,076.60 : 624,114.90 = 398,580.60 : x
  2. Step 2: Convert to fraction form
    416,076.60/624,114.90 = 398,580.60/x
  3. Step 3: Cross multiply
    416,076.60x = 624,114.90 × 398,580.60
  4. Step 4: Simplify right side
    416,076.60x = 248,760,091,310.94
  5. Step 5: Solve for x
    x = 248,760,091,310.94/416,076.60
  6. Step 6: Final answer
    x = 597,870.90

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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.