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Finding the Fourth Proportional to 580,905.80, 871,668.30 and 225,931.40

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Solution

The fourth proportional to 580,905.80, 871,668.30 and 225,931.40 is: 339,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,905.80 : 871,668.30 = 225,931.40 : x
  2. Step 2: Convert to fraction form
    580,905.80/871,668.30 = 225,931.40/x
  3. Step 3: Cross multiply
    580,905.80x = 871,668.30 × 225,931.40
  4. Step 4: Simplify right side
    580,905.80x = 196,937,239,354.62
  5. Step 5: Solve for x
    x = 196,937,239,354.62/580,905.80
  6. Step 6: Final answer
    x = 339,017.51

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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.