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Finding the Fourth Proportional to 382,233.60, 570,125.34 and 331,918.02

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Solution

The fourth proportional to 382,233.60, 570,125.34 and 331,918.02 is: 495,076.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,233.60 : 570,125.34 = 331,918.02 : x
  2. Step 2: Convert to fraction form
    382,233.60/570,125.34 = 331,918.02/x
  3. Step 3: Cross multiply
    382,233.60x = 570,125.34 × 331,918.02
  4. Step 4: Simplify right side
    382,233.60x = 189,234,874,004.63
  5. Step 5: Solve for x
    x = 189,234,874,004.63/382,233.60
  6. Step 6: Final answer
    x = 495,076.50

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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.