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Finding the Fourth Proportional to 410,720.75, 566,794.64 and 231,872.75

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Solution

The fourth proportional to 410,720.75, 566,794.64 and 231,872.75 is: 319,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,720.75 : 566,794.64 = 231,872.75 : x
  2. Step 2: Convert to fraction form
    410,720.75/566,794.64 = 231,872.75/x
  3. Step 3: Cross multiply
    410,720.75x = 566,794.64 × 231,872.75
  4. Step 4: Simplify right side
    410,720.75x = 131,424,231,862.06
  5. Step 5: Solve for x
    x = 131,424,231,862.06/410,720.75
  6. Step 6: Final answer
    x = 319,984.40

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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.