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Finding the Fourth Proportional to 328,997.88, 454,007.16 and 185,749.44

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Solution

The fourth proportional to 328,997.88, 454,007.16 and 185,749.44 is: 256,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,997.88 : 454,007.16 = 185,749.44 : x
  2. Step 2: Convert to fraction form
    328,997.88/454,007.16 = 185,749.44/x
  3. Step 3: Cross multiply
    328,997.88x = 454,007.16 × 185,749.44
  4. Step 4: Simplify right side
    328,997.88x = 84,331,575,725.99
  5. Step 5: Solve for x
    x = 84,331,575,725.99/328,997.88
  6. Step 6: Final answer
    x = 256,328.63

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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.