Home / 827,101.80-1,240,361.10-378,037.80

Finding the Fourth Proportional to 827,101.80, 1,240,361.10 and 378,037.80

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Solution

The fourth proportional to 827,101.80, 1,240,361.10 and 378,037.80 is: 566,923.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,101.80 : 1,240,361.10 = 378,037.80 : x
  2. Step 2: Convert to fraction form
    827,101.80/1,240,361.10 = 378,037.80/x
  3. Step 3: Cross multiply
    827,101.80x = 1,240,361.10 × 378,037.80
  4. Step 4: Simplify right side
    827,101.80x = 468,903,381,449.58
  5. Step 5: Solve for x
    x = 468,903,381,449.58/827,101.80
  6. Step 6: Final answer
    x = 566,923.42

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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.