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Finding the Fourth Proportional to 215,616.60, 323,424.90 and 184,512.60

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Solution

The fourth proportional to 215,616.60, 323,424.90 and 184,512.60 is: 276,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,616.60 : 323,424.90 = 184,512.60 : x
  2. Step 2: Convert to fraction form
    215,616.60/323,424.90 = 184,512.60/x
  3. Step 3: Cross multiply
    215,616.60x = 323,424.90 × 184,512.60
  4. Step 4: Simplify right side
    215,616.60x = 59,675,969,203.74
  5. Step 5: Solve for x
    x = 59,675,969,203.74/215,616.60
  6. Step 6: Final answer
    x = 276,768.90

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1.5x scale

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.