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Finding the Fourth Proportional to 262,874.10, 394,311.15 and 260,541.30

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Solution

The fourth proportional to 262,874.10, 394,311.15 and 260,541.30 is: 390,811.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,874.10 : 394,311.15 = 260,541.30 : x
  2. Step 2: Convert to fraction form
    262,874.10/394,311.15 = 260,541.30/x
  3. Step 3: Cross multiply
    262,874.10x = 394,311.15 × 260,541.30
  4. Step 4: Simplify right side
    262,874.10x = 102,734,339,625.50
  5. Step 5: Solve for x
    x = 102,734,339,625.50/262,874.10
  6. Step 6: Final answer
    x = 390,811.95

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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.