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Finding the Fourth Proportional to 408,672.61, 563,959.33 and 236,597.83

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Solution

The fourth proportional to 408,672.61, 563,959.33 and 236,597.83 is: 326,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,672.61 : 563,959.33 = 236,597.83 : x
  2. Step 2: Convert to fraction form
    408,672.61/563,959.33 = 236,597.83/x
  3. Step 3: Cross multiply
    408,672.61x = 563,959.33 × 236,597.83
  4. Step 4: Simplify right side
    408,672.61x = 133,431,551,684.86
  5. Step 5: Solve for x
    x = 133,431,551,684.86/408,672.61
  6. Step 6: Final answer
    x = 326,499.87

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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.