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Finding the Fourth Proportional to 578,082.10, 866,539.95 and 262,765.30

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Solution

The fourth proportional to 578,082.10, 866,539.95 and 262,765.30 is: 393,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,082.10 : 866,539.95 = 262,765.30 : x
  2. Step 2: Convert to fraction form
    578,082.10/866,539.95 = 262,765.30/x
  3. Step 3: Cross multiply
    578,082.10x = 866,539.95 × 262,765.30
  4. Step 4: Simplify right side
    578,082.10x = 227,696,629,923.74
  5. Step 5: Solve for x
    x = 227,696,629,923.74/578,082.10
  6. Step 6: Final answer
    x = 393,882.86

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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.