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Finding the Fourth Proportional to 404,951.68, 607,527.78 and 120,640.96

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Solution

The fourth proportional to 404,951.68, 607,527.78 and 120,640.96 is: 180,991.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,951.68 : 607,527.78 = 120,640.96 : x
  2. Step 2: Convert to fraction form
    404,951.68/607,527.78 = 120,640.96/x
  3. Step 3: Cross multiply
    404,951.68x = 607,527.78 × 120,640.96
  4. Step 4: Simplify right side
    404,951.68x = 73,292,734,605.87
  5. Step 5: Solve for x
    x = 73,292,734,605.87/404,951.68
  6. Step 6: Final answer
    x = 180,991.31

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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.