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Finding the Fourth Proportional to 376,528.70, 519,615.57 and 204,446.57

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Solution

The fourth proportional to 376,528.70, 519,615.57 and 204,446.57 is: 282,139.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,528.70 : 519,615.57 = 204,446.57 : x
  2. Step 2: Convert to fraction form
    376,528.70/519,615.57 = 204,446.57/x
  3. Step 3: Cross multiply
    376,528.70x = 519,615.57 × 204,446.57
  4. Step 4: Simplify right side
    376,528.70x = 106,233,619,856.43
  5. Step 5: Solve for x
    x = 106,233,619,856.43/376,528.70
  6. Step 6: Final answer
    x = 282,139.50

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1.5x scale

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.