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Finding the Fourth Proportional to 581,338.72, 871,633.20 and 277,568.57

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Solution

The fourth proportional to 581,338.72, 871,633.20 and 277,568.57 is: 416,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,338.72 : 871,633.20 = 277,568.57 : x
  2. Step 2: Convert to fraction form
    581,338.72/871,633.20 = 277,568.57/x
  3. Step 3: Cross multiply
    581,338.72x = 871,633.20 × 277,568.57
  4. Step 4: Simplify right side
    581,338.72x = 241,937,984,108.49
  5. Step 5: Solve for x
    x = 241,937,984,108.49/581,338.72
  6. Step 6: Final answer
    x = 416,173.87

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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.