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Finding the Fourth Proportional to 405,757.91, 559,769.87 and 244,521.33

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Solution

The fourth proportional to 405,757.91, 559,769.87 and 244,521.33 is: 337,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,757.91 : 559,769.87 = 244,521.33 : x
  2. Step 2: Convert to fraction form
    405,757.91/559,769.87 = 244,521.33/x
  3. Step 3: Cross multiply
    405,757.91x = 559,769.87 × 244,521.33
  4. Step 4: Simplify right side
    405,757.91x = 136,875,671,883.72
  5. Step 5: Solve for x
    x = 136,875,671,883.72/405,757.91
  6. Step 6: Final answer
    x = 337,333.35

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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.