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Finding the Fourth Proportional to 491,441.40, 737,550.90 and 192,065.40

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Solution

The fourth proportional to 491,441.40, 737,550.90 and 192,065.40 is: 288,250.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,441.40 : 737,550.90 = 192,065.40 : x
  2. Step 2: Convert to fraction form
    491,441.40/737,550.90 = 192,065.40/x
  3. Step 3: Cross multiply
    491,441.40x = 737,550.90 × 192,065.40
  4. Step 4: Simplify right side
    491,441.40x = 141,658,008,628.86
  5. Step 5: Solve for x
    x = 141,658,008,628.86/491,441.40
  6. Step 6: Final answer
    x = 288,250.05

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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.