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Finding the Fourth Proportional to 345,800.30, 477,245.43 and 192,863.42

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Solution

The fourth proportional to 345,800.30, 477,245.43 and 192,863.42 is: 266,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,800.30 : 477,245.43 = 192,863.42 : x
  2. Step 2: Convert to fraction form
    345,800.30/477,245.43 = 192,863.42/x
  3. Step 3: Cross multiply
    345,800.30x = 477,245.43 × 192,863.42
  4. Step 4: Simplify right side
    345,800.30x = 92,043,185,809.17
  5. Step 5: Solve for x
    x = 92,043,185,809.17/345,800.30
  6. Step 6: Final answer
    x = 266,174.40

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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.