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Finding the Fourth Proportional to 498,464.60, 747,696.90 and 443,352.20

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Solution

The fourth proportional to 498,464.60, 747,696.90 and 443,352.20 is: 665,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,464.60 : 747,696.90 = 443,352.20 : x
  2. Step 2: Convert to fraction form
    498,464.60/747,696.90 = 443,352.20/x
  3. Step 3: Cross multiply
    498,464.60x = 747,696.90 × 443,352.20
  4. Step 4: Simplify right side
    498,464.60x = 331,493,065,548.18
  5. Step 5: Solve for x
    x = 331,493,065,548.18/498,464.60
  6. Step 6: Final answer
    x = 665,028.30

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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.