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Finding the Fourth Proportional to 323,943.88, 485,919.08 and 113,586.88

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Solution

The fourth proportional to 323,943.88, 485,919.08 and 113,586.88 is: 170,381.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,943.88 : 485,919.08 = 113,586.88 : x
  2. Step 2: Convert to fraction form
    323,943.88/485,919.08 = 113,586.88/x
  3. Step 3: Cross multiply
    323,943.88x = 485,919.08 × 113,586.88
  4. Step 4: Simplify right side
    323,943.88x = 55,194,032,229.67
  5. Step 5: Solve for x
    x = 55,194,032,229.67/323,943.88
  6. Step 6: Final answer
    x = 170,381.46

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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.