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Finding the Fourth Proportional to 328,187.58, 493,308.96 and 216,584.97

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Solution

The fourth proportional to 328,187.58, 493,308.96 and 216,584.97 is: 325,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,187.58 : 493,308.96 = 216,584.97 : x
  2. Step 2: Convert to fraction form
    328,187.58/493,308.96 = 216,584.97/x
  3. Step 3: Cross multiply
    328,187.58x = 493,308.96 × 216,584.97
  4. Step 4: Simplify right side
    328,187.58x = 106,843,306,302.33
  5. Step 5: Solve for x
    x = 106,843,306,302.33/328,187.58
  6. Step 6: Final answer
    x = 325,555.61

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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.