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Finding the Fourth Proportional to 328,690.71, 453,614.58 and 185,398.47

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Solution

The fourth proportional to 328,690.71, 453,614.58 and 185,398.47 is: 255,861.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,690.71 : 453,614.58 = 185,398.47 : x
  2. Step 2: Convert to fraction form
    328,690.71/453,614.58 = 185,398.47/x
  3. Step 3: Cross multiply
    328,690.71x = 453,614.58 × 185,398.47
  4. Step 4: Simplify right side
    328,690.71x = 84,099,449,101.69
  5. Step 5: Solve for x
    x = 84,099,449,101.69/328,690.71
  6. Step 6: Final answer
    x = 255,861.96

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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.