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Finding the Fourth Proportional to 230,818.56, 345,552.96 and 208,682.88

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Solution

The fourth proportional to 230,818.56, 345,552.96 and 208,682.88 is: 312,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,818.56 : 345,552.96 = 208,682.88 : x
  2. Step 2: Convert to fraction form
    230,818.56/345,552.96 = 208,682.88/x
  3. Step 3: Cross multiply
    230,818.56x = 345,552.96 × 208,682.88
  4. Step 4: Simplify right side
    230,818.56x = 72,110,986,885.32
  5. Step 5: Solve for x
    x = 72,110,986,885.32/230,818.56
  6. Step 6: Final answer
    x = 312,414.16

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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.