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Finding the Fourth Proportional to 421,849.12, 632,576.82 and 244,406.89

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Solution

The fourth proportional to 421,849.12, 632,576.82 and 244,406.89 is: 366,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,849.12 : 632,576.82 = 244,406.89 : x
  2. Step 2: Convert to fraction form
    421,849.12/632,576.82 = 244,406.89/x
  3. Step 3: Cross multiply
    421,849.12x = 632,576.82 × 244,406.89
  4. Step 4: Simplify right side
    421,849.12x = 154,606,133,262.29
  5. Step 5: Solve for x
    x = 154,606,133,262.29/421,849.12
  6. Step 6: Final answer
    x = 366,496.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.