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Finding the Fourth Proportional to 262,675.70, 394,136.59 and 129,483.22

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Solution

The fourth proportional to 262,675.70, 394,136.59 and 129,483.22 is: 194,285.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,675.70 : 394,136.59 = 129,483.22 : x
  2. Step 2: Convert to fraction form
    262,675.70/394,136.59 = 129,483.22/x
  3. Step 3: Cross multiply
    262,675.70x = 394,136.59 × 129,483.22
  4. Step 4: Simplify right side
    262,675.70x = 51,034,074,793.02
  5. Step 5: Solve for x
    x = 51,034,074,793.02/262,675.70
  6. Step 6: Final answer
    x = 194,285.48

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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.