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Finding the Fourth Proportional to 498,464.10, 747,696.15 and 443,351.70

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Solution

The fourth proportional to 498,464.10, 747,696.15 and 443,351.70 is: 665,027.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,464.10 : 747,696.15 = 443,351.70 : x
  2. Step 2: Convert to fraction form
    498,464.10/747,696.15 = 443,351.70/x
  3. Step 3: Cross multiply
    498,464.10x = 747,696.15 × 443,351.70
  4. Step 4: Simplify right side
    498,464.10x = 331,492,359,185.96
  5. Step 5: Solve for x
    x = 331,492,359,185.96/498,464.10
  6. Step 6: Final answer
    x = 665,027.55

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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.