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Finding the Fourth Proportional to 271,019.40, 374,321.70 and 255,273

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Solution

The fourth proportional to 271,019.40, 374,321.70 and 255,273 is: 352,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,019.40 : 374,321.70 = 255,273 : x
  2. Step 2: Convert to fraction form
    271,019.40/374,321.70 = 255,273/x
  3. Step 3: Cross multiply
    271,019.40x = 374,321.70 × 255,273
  4. Step 4: Simplify right side
    271,019.40x = 95,554,223,324.10
  5. Step 5: Solve for x
    x = 95,554,223,324.10/271,019.40
  6. Step 6: Final answer
    x = 352,573.37

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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.