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Finding the Fourth Proportional to 444,721.80, 613,465.50 and 281,327.69

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Solution

The fourth proportional to 444,721.80, 613,465.50 and 281,327.69 is: 388,073.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,721.80 : 613,465.50 = 281,327.69 : x
  2. Step 2: Convert to fraction form
    444,721.80/613,465.50 = 281,327.69/x
  3. Step 3: Cross multiply
    444,721.80x = 613,465.50 × 281,327.69
  4. Step 4: Simplify right side
    444,721.80x = 172,584,832,009.70
  5. Step 5: Solve for x
    x = 172,584,832,009.70/444,721.80
  6. Step 6: Final answer
    x = 388,073.69

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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.