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Finding the Fourth Proportional to 455,335.68, 682,790.76 and 265,850.76

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Solution

The fourth proportional to 455,335.68, 682,790.76 and 265,850.76 is: 398,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,335.68 : 682,790.76 = 265,850.76 : x
  2. Step 2: Convert to fraction form
    455,335.68/682,790.76 = 265,850.76/x
  3. Step 3: Cross multiply
    455,335.68x = 682,790.76 × 265,850.76
  4. Step 4: Simplify right side
    455,335.68x = 181,520,442,466.98
  5. Step 5: Solve for x
    x = 181,520,442,466.98/455,335.68
  6. Step 6: Final answer
    x = 398,651.92

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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.