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Finding the Fourth Proportional to 484,992.73, 669,221.40 and 275,433.49

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Solution

The fourth proportional to 484,992.73, 669,221.40 and 275,433.49 is: 380,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,992.73 : 669,221.40 = 275,433.49 : x
  2. Step 2: Convert to fraction form
    484,992.73/669,221.40 = 275,433.49/x
  3. Step 3: Cross multiply
    484,992.73x = 669,221.40 × 275,433.49
  4. Step 4: Simplify right side
    484,992.73x = 184,325,985,784.69
  5. Step 5: Solve for x
    x = 184,325,985,784.69/484,992.73
  6. Step 6: Final answer
    x = 380,059.28

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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.