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Finding the Fourth Proportional to 327,924.40, 491,886.70 and 253,153.70

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Solution

The fourth proportional to 327,924.40, 491,886.70 and 253,153.70 is: 379,730.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,924.40 : 491,886.70 = 253,153.70 : x
  2. Step 2: Convert to fraction form
    327,924.40/491,886.70 = 253,153.70/x
  3. Step 3: Cross multiply
    327,924.40x = 491,886.70 × 253,153.70
  4. Step 4: Simplify right side
    327,924.40x = 124,522,938,085.79
  5. Step 5: Solve for x
    x = 124,522,938,085.79/327,924.40
  6. Step 6: Final answer
    x = 379,730.63

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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.