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Finding the Fourth Proportional to 365,447.42, 548,095.79 and 140,730.74

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Solution

The fourth proportional to 365,447.42, 548,095.79 and 140,730.74 is: 211,067.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,447.42 : 548,095.79 = 140,730.74 : x
  2. Step 2: Convert to fraction form
    365,447.42/548,095.79 = 140,730.74/x
  3. Step 3: Cross multiply
    365,447.42x = 548,095.79 × 140,730.74
  4. Step 4: Simplify right side
    365,447.42x = 77,133,923,728.93
  5. Step 5: Solve for x
    x = 77,133,923,728.93/365,447.42
  6. Step 6: Final answer
    x = 211,067.09

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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.