Home / 981,512.04-1,472,838.94-412,851.56

Finding the Fourth Proportional to 981,512.04, 1,472,838.94 and 412,851.56

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Solution

The fourth proportional to 981,512.04, 1,472,838.94 and 412,851.56 is: 619,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,512.04 : 1,472,838.94 = 412,851.56 : x
  2. Step 2: Convert to fraction form
    981,512.04/1,472,838.94 = 412,851.56/x
  3. Step 3: Cross multiply
    981,512.04x = 1,472,838.94 × 412,851.56
  4. Step 4: Simplify right side
    981,512.04x = 608,063,854,007.75
  5. Step 5: Solve for x
    x = 608,063,854,007.75/981,512.04
  6. Step 6: Final answer
    x = 619,517.47

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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.