Home / 643,265.76-964,586.66-193,902.87

Finding the Fourth Proportional to 643,265.76, 964,586.66 and 193,902.87

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Solution

The fourth proportional to 643,265.76, 964,586.66 and 193,902.87 is: 290,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,265.76 : 964,586.66 = 193,902.87 : x
  2. Step 2: Convert to fraction form
    643,265.76/964,586.66 = 193,902.87/x
  3. Step 3: Cross multiply
    643,265.76x = 964,586.66 × 193,902.87
  4. Step 4: Simplify right side
    643,265.76x = 187,036,120,768.20
  5. Step 5: Solve for x
    x = 187,036,120,768.20/643,265.76
  6. Step 6: Final answer
    x = 290,760.26

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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.