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Finding the Fourth Proportional to 736,540.80, 1,104,940.80 and 263,500.80

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Solution

The fourth proportional to 736,540.80, 1,104,940.80 and 263,500.80 is: 395,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,540.80 : 1,104,940.80 = 263,500.80 : x
  2. Step 2: Convert to fraction form
    736,540.80/1,104,940.80 = 263,500.80/x
  3. Step 3: Cross multiply
    736,540.80x = 1,104,940.80 × 263,500.80
  4. Step 4: Simplify right side
    736,540.80x = 291,152,784,752.64
  5. Step 5: Solve for x
    x = 291,152,784,752.64/736,540.80
  6. Step 6: Final answer
    x = 395,297.56

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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.