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Finding the Fourth Proportional to 512,136.60, 768,204.90 and 483,106.20

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Solution

The fourth proportional to 512,136.60, 768,204.90 and 483,106.20 is: 724,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,136.60 : 768,204.90 = 483,106.20 : x
  2. Step 2: Convert to fraction form
    512,136.60/768,204.90 = 483,106.20/x
  3. Step 3: Cross multiply
    512,136.60x = 768,204.90 × 483,106.20
  4. Step 4: Simplify right side
    512,136.60x = 371,124,550,060.38
  5. Step 5: Solve for x
    x = 371,124,550,060.38/512,136.60
  6. Step 6: Final answer
    x = 724,659.30

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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.