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Finding the Fourth Proportional to 328,781.92, 453,717.28 and 185,588.52

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Solution

The fourth proportional to 328,781.92, 453,717.28 and 185,588.52 is: 256,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,781.92 : 453,717.28 = 185,588.52 : x
  2. Step 2: Convert to fraction form
    328,781.92/453,717.28 = 185,588.52/x
  3. Step 3: Cross multiply
    328,781.92x = 453,717.28 × 185,588.52
  4. Step 4: Simplify right side
    328,781.92x = 84,204,718,493.63
  5. Step 5: Solve for x
    x = 84,204,718,493.63/328,781.92
  6. Step 6: Final answer
    x = 256,111.16

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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.