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Finding the Fourth Proportional to 422,535.66, 582,759.66 and 371,439.63

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Solution

The fourth proportional to 422,535.66, 582,759.66 and 371,439.63 is: 512,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,535.66 : 582,759.66 = 371,439.63 : x
  2. Step 2: Convert to fraction form
    422,535.66/582,759.66 = 371,439.63/x
  3. Step 3: Cross multiply
    422,535.66x = 582,759.66 × 371,439.63
  4. Step 4: Simplify right side
    422,535.66x = 216,460,032,489.33
  5. Step 5: Solve for x
    x = 216,460,032,489.33/422,535.66
  6. Step 6: Final answer
    x = 512,288.20

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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.