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Finding the Fourth Proportional to 330,518.64, 495,760.56 and 193,817.76

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Solution

The fourth proportional to 330,518.64, 495,760.56 and 193,817.76 is: 290,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,518.64 : 495,760.56 = 193,817.76 : x
  2. Step 2: Convert to fraction form
    330,518.64/495,760.56 = 193,817.76/x
  3. Step 3: Cross multiply
    330,518.64x = 495,760.56 × 193,817.76
  4. Step 4: Simplify right side
    330,518.64x = 96,087,201,235.55
  5. Step 5: Solve for x
    x = 96,087,201,235.55/330,518.64
  6. Step 6: Final answer
    x = 290,716.44

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1.5x scale

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.