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Finding the Fourth Proportional to 445,569.96, 667,172.54 and 348,540.20

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Solution

The fourth proportional to 445,569.96, 667,172.54 and 348,540.20 is: 521,885.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,569.96 : 667,172.54 = 348,540.20 : x
  2. Step 2: Convert to fraction form
    445,569.96/667,172.54 = 348,540.20/x
  3. Step 3: Cross multiply
    445,569.96x = 667,172.54 × 348,540.20
  4. Step 4: Simplify right side
    445,569.96x = 232,536,450,526.11
  5. Step 5: Solve for x
    x = 232,536,450,526.11/445,569.96
  6. Step 6: Final answer
    x = 521,885.39

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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.