Home / 986,611.78-1,361,525.46-533,902.78

Finding the Fourth Proportional to 986,611.78, 1,361,525.46 and 533,902.78

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Solution

The fourth proportional to 986,611.78, 1,361,525.46 and 533,902.78 is: 736,786.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,611.78 : 1,361,525.46 = 533,902.78 : x
  2. Step 2: Convert to fraction form
    986,611.78/1,361,525.46 = 533,902.78/x
  3. Step 3: Cross multiply
    986,611.78x = 1,361,525.46 × 533,902.78
  4. Step 4: Simplify right side
    986,611.78x = 726,922,228,134.78
  5. Step 5: Solve for x
    x = 726,922,228,134.78/986,611.78
  6. Step 6: Final answer
    x = 736,786.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.