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Finding the Fourth Proportional to 320,697.73, 442,609.82 and 184,705.21

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Solution

The fourth proportional to 320,697.73, 442,609.82 and 184,705.21 is: 254,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,697.73 : 442,609.82 = 184,705.21 : x
  2. Step 2: Convert to fraction form
    320,697.73/442,609.82 = 184,705.21/x
  3. Step 3: Cross multiply
    320,697.73x = 442,609.82 × 184,705.21
  4. Step 4: Simplify right side
    320,697.73x = 81,752,340,073.54
  5. Step 5: Solve for x
    x = 81,752,340,073.54/320,697.73
  6. Step 6: Final answer
    x = 254,920.23

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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.