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Finding the Fourth Proportional to 600,635.12, 828,516.11 and 396,686.43

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Solution

The fourth proportional to 600,635.12, 828,516.11 and 396,686.43 is: 547,189.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,635.12 : 828,516.11 = 396,686.43 : x
  2. Step 2: Convert to fraction form
    600,635.12/828,516.11 = 396,686.43/x
  3. Step 3: Cross multiply
    600,635.12x = 828,516.11 × 396,686.43
  4. Step 4: Simplify right side
    600,635.12x = 328,661,095,889.96
  5. Step 5: Solve for x
    x = 328,661,095,889.96/600,635.12
  6. Step 6: Final answer
    x = 547,189.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.