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Finding the Fourth Proportional to 326,087.16, 450,037.80 and 217,185.48

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Solution

The fourth proportional to 326,087.16, 450,037.80 and 217,185.48 is: 299,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,087.16 : 450,037.80 = 217,185.48 : x
  2. Step 2: Convert to fraction form
    326,087.16/450,037.80 = 217,185.48/x
  3. Step 3: Cross multiply
    326,087.16x = 450,037.80 × 217,185.48
  4. Step 4: Simplify right side
    326,087.16x = 97,741,675,611.14
  5. Step 5: Solve for x
    x = 97,741,675,611.14/326,087.16
  6. Step 6: Final answer
    x = 299,740.95

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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.