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Finding the Fourth Proportional to 329,757.25, 455,065.04 and 186,514.21

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Solution

The fourth proportional to 329,757.25, 455,065.04 and 186,514.21 is: 257,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,757.25 : 455,065.04 = 186,514.21 : x
  2. Step 2: Convert to fraction form
    329,757.25/455,065.04 = 186,514.21/x
  3. Step 3: Cross multiply
    329,757.25x = 455,065.04 × 186,514.21
  4. Step 4: Simplify right side
    329,757.25x = 84,876,096,434.22
  5. Step 5: Solve for x
    x = 84,876,096,434.22/329,757.25
  6. Step 6: Final answer
    x = 257,389.63

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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.