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Finding the Fourth Proportional to 624,198.60, 936,297.90 and 519,136.20

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Solution

The fourth proportional to 624,198.60, 936,297.90 and 519,136.20 is: 778,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,198.60 : 936,297.90 = 519,136.20 : x
  2. Step 2: Convert to fraction form
    624,198.60/936,297.90 = 519,136.20/x
  3. Step 3: Cross multiply
    624,198.60x = 936,297.90 × 519,136.20
  4. Step 4: Simplify right side
    624,198.60x = 486,066,133,873.98
  5. Step 5: Solve for x
    x = 486,066,133,873.98/624,198.60
  6. Step 6: Final answer
    x = 778,704.30

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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.