Home / 643,985.46-966,012.30-194,694.86

Finding the Fourth Proportional to 643,985.46, 966,012.30 and 194,694.86

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Solution

The fourth proportional to 643,985.46, 966,012.30 and 194,694.86 is: 292,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,985.46 : 966,012.30 = 194,694.86 : x
  2. Step 2: Convert to fraction form
    643,985.46/966,012.30 = 194,694.86/x
  3. Step 3: Cross multiply
    643,985.46x = 966,012.30 × 194,694.86
  4. Step 4: Simplify right side
    643,985.46x = 188,077,629,506.78
  5. Step 5: Solve for x
    x = 188,077,629,506.78/643,985.46
  6. Step 6: Final answer
    x = 292,052.60

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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.