Home / 769,996.80-1,153,766.40-644,659.20

Finding the Fourth Proportional to 769,996.80, 1,153,766.40 and 644,659.20

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Solution

The fourth proportional to 769,996.80, 1,153,766.40 and 644,659.20 is: 965,960.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,996.80 : 1,153,766.40 = 644,659.20 : x
  2. Step 2: Convert to fraction form
    769,996.80/1,153,766.40 = 644,659.20/x
  3. Step 3: Cross multiply
    769,996.80x = 1,153,766.40 × 644,659.20
  4. Step 4: Simplify right side
    769,996.80x = 743,786,124,410.88
  5. Step 5: Solve for x
    x = 743,786,124,410.88/769,996.80
  6. Step 6: Final answer
    x = 965,960.02

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1.5x scale

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.