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Finding the Fourth Proportional to 365,811.40, 548,480.30 and 155,392.20

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Solution

The fourth proportional to 365,811.40, 548,480.30 and 155,392.20 is: 232,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,811.40 : 548,480.30 = 155,392.20 : x
  2. Step 2: Convert to fraction form
    365,811.40/548,480.30 = 155,392.20/x
  3. Step 3: Cross multiply
    365,811.40x = 548,480.30 × 155,392.20
  4. Step 4: Simplify right side
    365,811.40x = 85,229,560,473.66
  5. Step 5: Solve for x
    x = 85,229,560,473.66/365,811.40
  6. Step 6: Final answer
    x = 232,987.71

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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.