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Finding the Fourth Proportional to 627,778.53, 941,692.50 and 328,055.58

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Solution

The fourth proportional to 627,778.53, 941,692.50 and 328,055.58 is: 492,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,778.53 : 941,692.50 = 328,055.58 : x
  2. Step 2: Convert to fraction form
    627,778.53/941,692.50 = 328,055.58/x
  3. Step 3: Cross multiply
    627,778.53x = 941,692.50 × 328,055.58
  4. Step 4: Simplify right side
    627,778.53x = 308,927,479,269.15
  5. Step 5: Solve for x
    x = 308,927,479,269.15/627,778.53
  6. Step 6: Final answer
    x = 492,096.28

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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.