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Finding the Fourth Proportional to 580,991.36, 871,417.67 and 154,558.48

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Solution

The fourth proportional to 580,991.36, 871,417.67 and 154,558.48 is: 231,819.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,991.36 : 871,417.67 = 154,558.48 : x
  2. Step 2: Convert to fraction form
    580,991.36/871,417.67 = 154,558.48/x
  3. Step 3: Cross multiply
    580,991.36x = 871,417.67 × 154,558.48
  4. Step 4: Simplify right side
    580,991.36x = 134,684,989,637.61
  5. Step 5: Solve for x
    x = 134,684,989,637.61/580,991.36
  6. Step 6: Final answer
    x = 231,819.27

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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.