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Finding the Fourth Proportional to 321,856.67, 444,172.30 and 185,888.09

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Solution

The fourth proportional to 321,856.67, 444,172.30 and 185,888.09 is: 256,531.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,856.67 : 444,172.30 = 185,888.09 : x
  2. Step 2: Convert to fraction form
    321,856.67/444,172.30 = 185,888.09/x
  3. Step 3: Cross multiply
    321,856.67x = 444,172.30 × 185,888.09
  4. Step 4: Simplify right side
    321,856.67x = 82,566,337,792.33
  5. Step 5: Solve for x
    x = 82,566,337,792.33/321,856.67
  6. Step 6: Final answer
    x = 256,531.39

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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.