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Finding the Fourth Proportional to 622,296.81, 933,401.21 and 355,220.37

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Solution

The fourth proportional to 622,296.81, 933,401.21 and 355,220.37 is: 532,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,296.81 : 933,401.21 = 355,220.37 : x
  2. Step 2: Convert to fraction form
    622,296.81/933,401.21 = 355,220.37/x
  3. Step 3: Cross multiply
    622,296.81x = 933,401.21 × 355,220.37
  4. Step 4: Simplify right side
    622,296.81x = 331,563,121,398.55
  5. Step 5: Solve for x
    x = 331,563,121,398.55/622,296.81
  6. Step 6: Final answer
    x = 532,805.43

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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.