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Finding the Fourth Proportional to 496,838.40, 745,190.40 and 197,539.20

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Solution

The fourth proportional to 496,838.40, 745,190.40 and 197,539.20 is: 296,282.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,838.40 : 745,190.40 = 197,539.20 : x
  2. Step 2: Convert to fraction form
    496,838.40/745,190.40 = 197,539.20/x
  3. Step 3: Cross multiply
    496,838.40x = 745,190.40 × 197,539.20
  4. Step 4: Simplify right side
    496,838.40x = 147,204,315,463.68
  5. Step 5: Solve for x
    x = 147,204,315,463.68/496,838.40
  6. Step 6: Final answer
    x = 296,282.08

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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.