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Finding the Fourth Proportional to 408,990.27, 564,260.50 and 236,814.27

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Solution

The fourth proportional to 408,990.27, 564,260.50 and 236,814.27 is: 326,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,990.27 : 564,260.50 = 236,814.27 : x
  2. Step 2: Convert to fraction form
    408,990.27/564,260.50 = 236,814.27/x
  3. Step 3: Cross multiply
    408,990.27x = 564,260.50 × 236,814.27
  4. Step 4: Simplify right side
    408,990.27x = 133,624,938,397.34
  5. Step 5: Solve for x
    x = 133,624,938,397.34/408,990.27
  6. Step 6: Final answer
    x = 326,719.11

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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.