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Finding the Fourth Proportional to 603,553.75, 832,926.05 and 345,478.03

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Solution

The fourth proportional to 603,553.75, 832,926.05 and 345,478.03 is: 476,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,553.75 : 832,926.05 = 345,478.03 : x
  2. Step 2: Convert to fraction form
    603,553.75/832,926.05 = 345,478.03/x
  3. Step 3: Cross multiply
    603,553.75x = 832,926.05 × 345,478.03
  4. Step 4: Simplify right side
    603,553.75x = 287,757,650,889.68
  5. Step 5: Solve for x
    x = 287,757,650,889.68/603,553.75
  6. Step 6: Final answer
    x = 476,772.20

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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.