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Finding the Fourth Proportional to 484,082.60, 726,123.90 and 274,130.60

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Solution

The fourth proportional to 484,082.60, 726,123.90 and 274,130.60 is: 411,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,082.60 : 726,123.90 = 274,130.60 : x
  2. Step 2: Convert to fraction form
    484,082.60/726,123.90 = 274,130.60/x
  3. Step 3: Cross multiply
    484,082.60x = 726,123.90 × 274,130.60
  4. Step 4: Simplify right side
    484,082.60x = 199,052,780,381.34
  5. Step 5: Solve for x
    x = 199,052,780,381.34/484,082.60
  6. Step 6: Final answer
    x = 411,195.90

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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.