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Finding the Fourth Proportional to 580,915.80, 871,503.30 and 225,898.20

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Solution

The fourth proportional to 580,915.80, 871,503.30 and 225,898.20 is: 338,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,915.80 : 871,503.30 = 225,898.20 : x
  2. Step 2: Convert to fraction form
    580,915.80/871,503.30 = 225,898.20/x
  3. Step 3: Cross multiply
    580,915.80x = 871,503.30 × 225,898.20
  4. Step 4: Simplify right side
    580,915.80x = 196,871,026,764.06
  5. Step 5: Solve for x
    x = 196,871,026,764.06/580,915.80
  6. Step 6: Final answer
    x = 338,897.70

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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.