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Finding the Fourth Proportional to 467,163.84, 644,333.22 and 402,744.54

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Solution

The fourth proportional to 467,163.84, 644,333.22 and 402,744.54 is: 555,483.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,163.84 : 644,333.22 = 402,744.54 : x
  2. Step 2: Convert to fraction form
    467,163.84/644,333.22 = 402,744.54/x
  3. Step 3: Cross multiply
    467,163.84x = 644,333.22 × 402,744.54
  4. Step 4: Simplify right side
    467,163.84x = 259,501,686,295.62
  5. Step 5: Solve for x
    x = 259,501,686,295.62/467,163.84
  6. Step 6: Final answer
    x = 555,483.25

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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.