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Finding the Fourth Proportional to 365,987.70, 548,981.55 and 188,840.70

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Solution

The fourth proportional to 365,987.70, 548,981.55 and 188,840.70 is: 283,261.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,987.70 : 548,981.55 = 188,840.70 : x
  2. Step 2: Convert to fraction form
    365,987.70/548,981.55 = 188,840.70/x
  3. Step 3: Cross multiply
    365,987.70x = 548,981.55 × 188,840.70
  4. Step 4: Simplify right side
    365,987.70x = 103,670,060,189.09
  5. Step 5: Solve for x
    x = 103,670,060,189.09/365,987.70
  6. Step 6: Final answer
    x = 283,261.05

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Similar ratio
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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.