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Finding the Fourth Proportional to 366,768.30, 548,986.05 and 261,792.30

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Solution

The fourth proportional to 366,768.30, 548,986.05 and 261,792.30 is: 391,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,768.30 : 548,986.05 = 261,792.30 : x
  2. Step 2: Convert to fraction form
    366,768.30/548,986.05 = 261,792.30/x
  3. Step 3: Cross multiply
    366,768.30x = 548,986.05 × 261,792.30
  4. Step 4: Simplify right side
    366,768.30x = 143,720,320,697.42
  5. Step 5: Solve for x
    x = 143,720,320,697.42/366,768.30
  6. Step 6: Final answer
    x = 391,855.90

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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.