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Finding the Fourth Proportional to 589,149.80, 883,724.70 and 339,626.60

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Solution

The fourth proportional to 589,149.80, 883,724.70 and 339,626.60 is: 509,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,149.80 : 883,724.70 = 339,626.60 : x
  2. Step 2: Convert to fraction form
    589,149.80/883,724.70 = 339,626.60/x
  3. Step 3: Cross multiply
    589,149.80x = 883,724.70 × 339,626.60
  4. Step 4: Simplify right side
    589,149.80x = 300,136,415,197.02
  5. Step 5: Solve for x
    x = 300,136,415,197.02/589,149.80
  6. Step 6: Final answer
    x = 509,439.90

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Double scale
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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.