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Finding the Fourth Proportional to 593,345.97, 818,821.37 and 321,413.87

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Solution

The fourth proportional to 593,345.97, 818,821.37 and 321,413.87 is: 443,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,345.97 : 818,821.37 = 321,413.87 : x
  2. Step 2: Convert to fraction form
    593,345.97/818,821.37 = 321,413.87/x
  3. Step 3: Cross multiply
    593,345.97x = 818,821.37 × 321,413.87
  4. Step 4: Simplify right side
    593,345.97x = 263,180,548,220.99
  5. Step 5: Solve for x
    x = 263,180,548,220.99/593,345.97
  6. Step 6: Final answer
    x = 443,553.28

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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.