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Finding the Fourth Proportional to 320,591.67, 442,429.52 and 177,349.24

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Solution

The fourth proportional to 320,591.67, 442,429.52 and 177,349.24 is: 244,749.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,591.67 : 442,429.52 = 177,349.24 : x
  2. Step 2: Convert to fraction form
    320,591.67/442,429.52 = 177,349.24/x
  3. Step 3: Cross multiply
    320,591.67x = 442,429.52 × 177,349.24
  4. Step 4: Simplify right side
    320,591.67x = 78,464,539,125.56
  5. Step 5: Solve for x
    x = 78,464,539,125.56/320,591.67
  6. Step 6: Final answer
    x = 244,749.15

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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.