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Finding the Fourth Proportional to 264,015.40, 396,023.10 and 162,538.60

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Solution

The fourth proportional to 264,015.40, 396,023.10 and 162,538.60 is: 243,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,015.40 : 396,023.10 = 162,538.60 : x
  2. Step 2: Convert to fraction form
    264,015.40/396,023.10 = 162,538.60/x
  3. Step 3: Cross multiply
    264,015.40x = 396,023.10 × 162,538.60
  4. Step 4: Simplify right side
    264,015.40x = 64,369,040,241.66
  5. Step 5: Solve for x
    x = 64,369,040,241.66/264,015.40
  6. Step 6: Final answer
    x = 243,807.90

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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.