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Finding the Fourth Proportional to 326,672.45, 490,070.64 and 113,432.06

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Solution

The fourth proportional to 326,672.45, 490,070.64 and 113,432.06 is: 170,169.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,672.45 : 490,070.64 = 113,432.06 : x
  2. Step 2: Convert to fraction form
    326,672.45/490,070.64 = 113,432.06/x
  3. Step 3: Cross multiply
    326,672.45x = 490,070.64 × 113,432.06
  4. Step 4: Simplify right side
    326,672.45x = 55,589,722,240.72
  5. Step 5: Solve for x
    x = 55,589,722,240.72/326,672.45
  6. Step 6: Final answer
    x = 170,169.61

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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.