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Finding the Fourth Proportional to 341,718.60, 513,096.30 and 262,921.80

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Solution

The fourth proportional to 341,718.60, 513,096.30 and 262,921.80 is: 394,781.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,718.60 : 513,096.30 = 262,921.80 : x
  2. Step 2: Convert to fraction form
    341,718.60/513,096.30 = 262,921.80/x
  3. Step 3: Cross multiply
    341,718.60x = 513,096.30 × 262,921.80
  4. Step 4: Simplify right side
    341,718.60x = 134,904,202,769.34
  5. Step 5: Solve for x
    x = 134,904,202,769.34/341,718.60
  6. Step 6: Final answer
    x = 394,781.56

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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.