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Finding the Fourth Proportional to 448,982.67, 619,433.60 and 345,648.41

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Solution

The fourth proportional to 448,982.67, 619,433.60 and 345,648.41 is: 476,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,982.67 : 619,433.60 = 345,648.41 : x
  2. Step 2: Convert to fraction form
    448,982.67/619,433.60 = 345,648.41/x
  3. Step 3: Cross multiply
    448,982.67x = 619,433.60 × 345,648.41
  4. Step 4: Simplify right side
    448,982.67x = 214,106,234,115.17
  5. Step 5: Solve for x
    x = 214,106,234,115.17/448,982.67
  6. Step 6: Final answer
    x = 476,869.71

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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.