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Finding the Fourth Proportional to 365,009.12, 548,485.68 and 196,658.72

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Solution

The fourth proportional to 365,009.12, 548,485.68 and 196,658.72 is: 295,511.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,009.12 : 548,485.68 = 196,658.72 : x
  2. Step 2: Convert to fraction form
    365,009.12/548,485.68 = 196,658.72/x
  3. Step 3: Cross multiply
    365,009.12x = 548,485.68 × 196,658.72
  4. Step 4: Simplify right side
    365,009.12x = 107,864,491,767.13
  5. Step 5: Solve for x
    x = 107,864,491,767.13/365,009.12
  6. Step 6: Final answer
    x = 295,511.77

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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.