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Finding the Fourth Proportional to 618,091.20, 926,445.60 and 263,044.80

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Solution

The fourth proportional to 618,091.20, 926,445.60 and 263,044.80 is: 394,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,091.20 : 926,445.60 = 263,044.80 : x
  2. Step 2: Convert to fraction form
    618,091.20/926,445.60 = 263,044.80/x
  3. Step 3: Cross multiply
    618,091.20x = 926,445.60 × 263,044.80
  4. Step 4: Simplify right side
    618,091.20x = 243,696,697,562.88
  5. Step 5: Solve for x
    x = 243,696,697,562.88/618,091.20
  6. Step 6: Final answer
    x = 394,273.04

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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.