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Finding the Fourth Proportional to 553,630.92, 764,010.60 and 298,982.11

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Solution

The fourth proportional to 553,630.92, 764,010.60 and 298,982.11 is: 412,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,630.92 : 764,010.60 = 298,982.11 : x
  2. Step 2: Convert to fraction form
    553,630.92/764,010.60 = 298,982.11/x
  3. Step 3: Cross multiply
    553,630.92x = 764,010.60 × 298,982.11
  4. Step 4: Simplify right side
    553,630.92x = 228,425,504,323.12
  5. Step 5: Solve for x
    x = 228,425,504,323.12/553,630.92
  6. Step 6: Final answer
    x = 412,595.28

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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.