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Finding the Fourth Proportional to 475,861.56, 656,692.18 and 261,003.12

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Solution

The fourth proportional to 475,861.56, 656,692.18 and 261,003.12 is: 360,186.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,861.56 : 656,692.18 = 261,003.12 : x
  2. Step 2: Convert to fraction form
    475,861.56/656,692.18 = 261,003.12/x
  3. Step 3: Cross multiply
    475,861.56x = 656,692.18 × 261,003.12
  4. Step 4: Simplify right side
    475,861.56x = 171,398,707,859.60
  5. Step 5: Solve for x
    x = 171,398,707,859.60/475,861.56
  6. Step 6: Final answer
    x = 360,186.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.