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Finding the Fourth Proportional to 326,661.68, 450,805.84 and 181,478.42

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Solution

The fourth proportional to 326,661.68, 450,805.84 and 181,478.42 is: 250,447.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,661.68 : 450,805.84 = 181,478.42 : x
  2. Step 2: Convert to fraction form
    326,661.68/450,805.84 = 181,478.42/x
  3. Step 3: Cross multiply
    326,661.68x = 450,805.84 × 181,478.42
  4. Step 4: Simplify right side
    326,661.68x = 81,811,531,569.97
  5. Step 5: Solve for x
    x = 81,811,531,569.97/326,661.68
  6. Step 6: Final answer
    x = 250,447.29

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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.