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Finding the Fourth Proportional to 618,467.86, 926,826.99 and 263,124.10

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Solution

The fourth proportional to 618,467.86, 926,826.99 and 263,124.10 is: 394,313.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,467.86 : 926,826.99 = 263,124.10 : x
  2. Step 2: Convert to fraction form
    618,467.86/926,826.99 = 263,124.10/x
  3. Step 3: Cross multiply
    618,467.86x = 926,826.99 × 263,124.10
  4. Step 4: Simplify right side
    618,467.86x = 243,870,517,599.46
  5. Step 5: Solve for x
    x = 243,870,517,599.46/618,467.86
  6. Step 6: Final answer
    x = 394,313.97

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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.