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Finding the Fourth Proportional to 408,677.67, 563,966.34 and 236,602.89

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Solution

The fourth proportional to 408,677.67, 563,966.34 and 236,602.89 is: 326,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,677.67 : 563,966.34 = 236,602.89 : x
  2. Step 2: Convert to fraction form
    408,677.67/563,966.34 = 236,602.89/x
  3. Step 3: Cross multiply
    408,677.67x = 563,966.34 × 236,602.89
  4. Step 4: Simplify right side
    408,677.67x = 133,436,065,906.72
  5. Step 5: Solve for x
    x = 133,436,065,906.72/408,677.67
  6. Step 6: Final answer
    x = 326,506.87

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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.