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Finding the Fourth Proportional to 327,491.52, 488,683.20 and 292,188.48

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Solution

The fourth proportional to 327,491.52, 488,683.20 and 292,188.48 is: 436,003.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,491.52 : 488,683.20 = 292,188.48 : x
  2. Step 2: Convert to fraction form
    327,491.52/488,683.20 = 292,188.48/x
  3. Step 3: Cross multiply
    327,491.52x = 488,683.20 × 292,188.48
  4. Step 4: Simplify right side
    327,491.52x = 142,787,601,409.54
  5. Step 5: Solve for x
    x = 142,787,601,409.54/327,491.52
  6. Step 6: Final answer
    x = 436,003.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.