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Finding the Fourth Proportional to 484,896.96, 669,156.12 and 270,039.60

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Solution

The fourth proportional to 484,896.96, 669,156.12 and 270,039.60 is: 372,653.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,896.96 : 669,156.12 = 270,039.60 : x
  2. Step 2: Convert to fraction form
    484,896.96/669,156.12 = 270,039.60/x
  3. Step 3: Cross multiply
    484,896.96x = 669,156.12 × 270,039.60
  4. Step 4: Simplify right side
    484,896.96x = 180,698,650,982.35
  5. Step 5: Solve for x
    x = 180,698,650,982.35/484,896.96
  6. Step 6: Final answer
    x = 372,653.71

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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.