Home / 1,383,510.80-1,908,954.56-839,932.80

Finding the Fourth Proportional to 1,383,510.80, 1,908,954.56 and 839,932.80

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Solution

The fourth proportional to 1,383,510.80, 1,908,954.56 and 839,932.80 is: 1,158,931.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,510.80 : 1,908,954.56 = 839,932.80 : x
  2. Step 2: Convert to fraction form
    1,383,510.80/1,908,954.56 = 839,932.80/x
  3. Step 3: Cross multiply
    1,383,510.80x = 1,908,954.56 × 839,932.80
  4. Step 4: Simplify right side
    1,383,510.80x = 1,603,393,548,653.57
  5. Step 5: Solve for x
    x = 1,603,393,548,653.57/1,383,510.80
  6. Step 6: Final answer
    x = 1,158,931.00

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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.