Home / 385,127.97-577,550.35-132,336.69

Finding the Fourth Proportional to 385,127.97, 577,550.35 and 132,336.69

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Solution

The fourth proportional to 385,127.97, 577,550.35 and 132,336.69 is: 198,456.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,127.97 : 577,550.35 = 132,336.69 : x
  2. Step 2: Convert to fraction form
    385,127.97/577,550.35 = 132,336.69/x
  3. Step 3: Cross multiply
    385,127.97x = 577,550.35 × 132,336.69
  4. Step 4: Simplify right side
    385,127.97x = 76,431,099,626.95
  5. Step 5: Solve for x
    x = 76,431,099,626.95/385,127.97
  6. Step 6: Final answer
    x = 198,456.37

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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.