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Finding the Fourth Proportional to 451,570.60, 677,355.90 and 264,485.80

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Solution

The fourth proportional to 451,570.60, 677,355.90 and 264,485.80 is: 396,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,570.60 : 677,355.90 = 264,485.80 : x
  2. Step 2: Convert to fraction form
    451,570.60/677,355.90 = 264,485.80/x
  3. Step 3: Cross multiply
    451,570.60x = 677,355.90 × 264,485.80
  4. Step 4: Simplify right side
    451,570.60x = 179,151,017,096.22
  5. Step 5: Solve for x
    x = 179,151,017,096.22/451,570.60
  6. Step 6: Final answer
    x = 396,728.70

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Similar ratio
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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.