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Finding the Fourth Proportional to 364,861.78, 547,280.70 and 165,182.20

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Solution

The fourth proportional to 364,861.78, 547,280.70 and 165,182.20 is: 247,767.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,861.78 : 547,280.70 = 165,182.20 : x
  2. Step 2: Convert to fraction form
    364,861.78/547,280.70 = 165,182.20/x
  3. Step 3: Cross multiply
    364,861.78x = 547,280.70 × 165,182.20
  4. Step 4: Simplify right side
    364,861.78x = 90,401,030,043.54
  5. Step 5: Solve for x
    x = 90,401,030,043.54/364,861.78
  6. Step 6: Final answer
    x = 247,767.88

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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.