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Finding the Fourth Proportional to 353,989.38, 488,503.44 and 192,844.05

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Solution

The fourth proportional to 353,989.38, 488,503.44 and 192,844.05 is: 266,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,989.38 : 488,503.44 = 192,844.05 : x
  2. Step 2: Convert to fraction form
    353,989.38/488,503.44 = 192,844.05/x
  3. Step 3: Cross multiply
    353,989.38x = 488,503.44 × 192,844.05
  4. Step 4: Simplify right side
    353,989.38x = 94,204,981,808.53
  5. Step 5: Solve for x
    x = 94,204,981,808.53/353,989.38
  6. Step 6: Final answer
    x = 266,123.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.