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Finding the Fourth Proportional to 580,971.63, 871,261.53 and 221,057.04

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Solution

The fourth proportional to 580,971.63, 871,261.53 and 221,057.04 is: 331,511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,971.63 : 871,261.53 = 221,057.04 : x
  2. Step 2: Convert to fraction form
    580,971.63/871,261.53 = 221,057.04/x
  3. Step 3: Cross multiply
    580,971.63x = 871,261.53 × 221,057.04
  4. Step 4: Simplify right side
    580,971.63x = 192,598,498,569.38
  5. Step 5: Solve for x
    x = 192,598,498,569.38/580,971.63
  6. Step 6: Final answer
    x = 331,511.02

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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.