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Finding the Fourth Proportional to 328,691.71, 453,615.96 and 185,399.47

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Solution

The fourth proportional to 328,691.71, 453,615.96 and 185,399.47 is: 255,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,691.71 : 453,615.96 = 185,399.47 : x
  2. Step 2: Convert to fraction form
    328,691.71/453,615.96 = 185,399.47/x
  3. Step 3: Cross multiply
    328,691.71x = 453,615.96 × 185,399.47
  4. Step 4: Simplify right side
    328,691.71x = 84,100,158,567.54
  5. Step 5: Solve for x
    x = 84,100,158,567.54/328,691.71
  6. Step 6: Final answer
    x = 255,863.34

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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.