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Finding the Fourth Proportional to 620,372.22, 929,896.71 and 353,558.22

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Solution

The fourth proportional to 620,372.22, 929,896.71 and 353,558.22 is: 529,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,372.22 : 929,896.71 = 353,558.22 : x
  2. Step 2: Convert to fraction form
    620,372.22/929,896.71 = 353,558.22/x
  3. Step 3: Cross multiply
    620,372.22x = 929,896.71 × 353,558.22
  4. Step 4: Simplify right side
    620,372.22x = 328,772,625,571.46
  5. Step 5: Solve for x
    x = 328,772,625,571.46/620,372.22
  6. Step 6: Final answer
    x = 529,960.26

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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.