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Finding the Fourth Proportional to 322,065.60, 485,027.20 and 293,335.68

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Solution

The fourth proportional to 322,065.60, 485,027.20 and 293,335.68 is: 441,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,065.60 : 485,027.20 = 293,335.68 : x
  2. Step 2: Convert to fraction form
    322,065.60/485,027.20 = 293,335.68/x
  3. Step 3: Cross multiply
    322,065.60x = 485,027.20 × 293,335.68
  4. Step 4: Simplify right side
    322,065.60x = 142,275,783,530.50
  5. Step 5: Solve for x
    x = 142,275,783,530.50/322,065.60
  6. Step 6: Final answer
    x = 441,760.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.