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Finding the Fourth Proportional to 330,060.60, 495,285.30 and 218,064.60

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Solution

The fourth proportional to 330,060.60, 495,285.30 and 218,064.60 is: 327,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,060.60 : 495,285.30 = 218,064.60 : x
  2. Step 2: Convert to fraction form
    330,060.60/495,285.30 = 218,064.60/x
  3. Step 3: Cross multiply
    330,060.60x = 495,285.30 × 218,064.60
  4. Step 4: Simplify right side
    330,060.60x = 108,004,190,830.38
  5. Step 5: Solve for x
    x = 108,004,190,830.38/330,060.60
  6. Step 6: Final answer
    x = 327,225.34

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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.