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Finding the Fourth Proportional to 471,500.80, 707,251.20 and 191,027.20

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Solution

The fourth proportional to 471,500.80, 707,251.20 and 191,027.20 is: 286,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,500.80 : 707,251.20 = 191,027.20 : x
  2. Step 2: Convert to fraction form
    471,500.80/707,251.20 = 191,027.20/x
  3. Step 3: Cross multiply
    471,500.80x = 707,251.20 × 191,027.20
  4. Step 4: Simplify right side
    471,500.80x = 135,104,216,432.64
  5. Step 5: Solve for x
    x = 135,104,216,432.64/471,500.80
  6. Step 6: Final answer
    x = 286,540.80

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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.