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Finding the Fourth Proportional to 624,558.51, 861,840.54 and 352,692.54

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Solution

The fourth proportional to 624,558.51, 861,840.54 and 352,692.54 is: 486,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,558.51 : 861,840.54 = 352,692.54 : x
  2. Step 2: Convert to fraction form
    624,558.51/861,840.54 = 352,692.54/x
  3. Step 3: Cross multiply
    624,558.51x = 861,840.54 × 352,692.54
  4. Step 4: Simplify right side
    624,558.51x = 303,964,729,127.57
  5. Step 5: Solve for x
    x = 303,964,729,127.57/624,558.51
  6. Step 6: Final answer
    x = 486,687.35

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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.