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Finding the Fourth Proportional to 262,933.60, 394,400.40 and 129,834.40

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Solution

The fourth proportional to 262,933.60, 394,400.40 and 129,834.40 is: 194,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,933.60 : 394,400.40 = 129,834.40 : x
  2. Step 2: Convert to fraction form
    262,933.60/394,400.40 = 129,834.40/x
  3. Step 3: Cross multiply
    262,933.60x = 394,400.40 × 129,834.40
  4. Step 4: Simplify right side
    262,933.60x = 51,206,739,293.76
  5. Step 5: Solve for x
    x = 51,206,739,293.76/262,933.60
  6. Step 6: Final answer
    x = 194,751.60

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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.