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Finding the Fourth Proportional to 364,860.78, 547,279.20 and 165,181.20

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Solution

The fourth proportional to 364,860.78, 547,279.20 and 165,181.20 is: 247,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,860.78 : 547,279.20 = 165,181.20 : x
  2. Step 2: Convert to fraction form
    364,860.78/547,279.20 = 165,181.20/x
  3. Step 3: Cross multiply
    364,860.78x = 547,279.20 × 165,181.20
  4. Step 4: Simplify right side
    364,860.78x = 90,400,234,991.04
  5. Step 5: Solve for x
    x = 90,400,234,991.04/364,860.78
  6. Step 6: Final answer
    x = 247,766.38

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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.