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Finding the Fourth Proportional to 580,837.80, 871,256.70 and 154,372.80

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Solution

The fourth proportional to 580,837.80, 871,256.70 and 154,372.80 is: 231,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,837.80 : 871,256.70 = 154,372.80 : x
  2. Step 2: Convert to fraction form
    580,837.80/871,256.70 = 154,372.80/x
  3. Step 3: Cross multiply
    580,837.80x = 871,256.70 × 154,372.80
  4. Step 4: Simplify right side
    580,837.80x = 134,498,336,297.76
  5. Step 5: Solve for x
    x = 134,498,336,297.76/580,837.80
  6. Step 6: Final answer
    x = 231,559.20

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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.