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Finding the Fourth Proportional to 365,739.80, 548,609.70 and 303,531.80

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Solution

The fourth proportional to 365,739.80, 548,609.70 and 303,531.80 is: 455,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,739.80 : 548,609.70 = 303,531.80 : x
  2. Step 2: Convert to fraction form
    365,739.80/548,609.70 = 303,531.80/x
  3. Step 3: Cross multiply
    365,739.80x = 548,609.70 × 303,531.80
  4. Step 4: Simplify right side
    365,739.80x = 166,520,489,738.46
  5. Step 5: Solve for x
    x = 166,520,489,738.46/365,739.80
  6. Step 6: Final answer
    x = 455,297.70

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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.