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Finding the Fourth Proportional to 408,661.71, 563,944.37 and 236,586.98

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Solution

The fourth proportional to 408,661.71, 563,944.37 and 236,586.98 is: 326,484.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,661.71 : 563,944.37 = 236,586.98 : x
  2. Step 2: Convert to fraction form
    408,661.71/563,944.37 = 236,586.98/x
  3. Step 3: Cross multiply
    408,661.71x = 563,944.37 × 236,586.98
  4. Step 4: Simplify right side
    408,661.71x = 133,421,891,383.65
  5. Step 5: Solve for x
    x = 133,421,891,383.65/408,661.71
  6. Step 6: Final answer
    x = 326,484.93

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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.