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Finding the Fourth Proportional to 365,885.83, 548,825.59 and 285,990.92

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Solution

The fourth proportional to 365,885.83, 548,825.59 and 285,990.92 is: 428,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,885.83 : 548,825.59 = 285,990.92 : x
  2. Step 2: Convert to fraction form
    365,885.83/548,825.59 = 285,990.92/x
  3. Step 3: Cross multiply
    365,885.83x = 548,825.59 × 285,990.92
  4. Step 4: Simplify right side
    365,885.83x = 156,959,135,403.64
  5. Step 5: Solve for x
    x = 156,959,135,403.64/365,885.83
  6. Step 6: Final answer
    x = 428,983.91

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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.