Home / 644,021.70-966,032.55-194,811.90

Finding the Fourth Proportional to 644,021.70, 966,032.55 and 194,811.90

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Solution

The fourth proportional to 644,021.70, 966,032.55 and 194,811.90 is: 292,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,021.70 : 966,032.55 = 194,811.90 : x
  2. Step 2: Convert to fraction form
    644,021.70/966,032.55 = 194,811.90/x
  3. Step 3: Cross multiply
    644,021.70x = 966,032.55 × 194,811.90
  4. Step 4: Simplify right side
    644,021.70x = 188,194,636,527.35
  5. Step 5: Solve for x
    x = 188,194,636,527.35/644,021.70
  6. Step 6: Final answer
    x = 292,217.85

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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.