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Finding the Fourth Proportional to 297,825.78, 411,003.60 and 161,862.42

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Solution

The fourth proportional to 297,825.78, 411,003.60 and 161,862.42 is: 223,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,825.78 : 411,003.60 = 161,862.42 : x
  2. Step 2: Convert to fraction form
    297,825.78/411,003.60 = 161,862.42/x
  3. Step 3: Cross multiply
    297,825.78x = 411,003.60 × 161,862.42
  4. Step 4: Simplify right side
    297,825.78x = 66,526,037,324.71
  5. Step 5: Solve for x
    x = 66,526,037,324.71/297,825.78
  6. Step 6: Final answer
    x = 223,372.33

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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.