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Finding the Fourth Proportional to 411,422.94, 567,535.05 and 239,321.54

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Solution

The fourth proportional to 411,422.94, 567,535.05 and 239,321.54 is: 330,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,422.94 : 567,535.05 = 239,321.54 : x
  2. Step 2: Convert to fraction form
    411,422.94/567,535.05 = 239,321.54/x
  3. Step 3: Cross multiply
    411,422.94x = 567,535.05 × 239,321.54
  4. Step 4: Simplify right side
    411,422.94x = 135,823,358,135.69
  5. Step 5: Solve for x
    x = 135,823,358,135.69/411,422.94
  6. Step 6: Final answer
    x = 330,130.73

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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.