Home / 1,282,361.66-1,769,711.20-709,391.96

Finding the Fourth Proportional to 1,282,361.66, 1,769,711.20 and 709,391.96

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Solution

The fourth proportional to 1,282,361.66, 1,769,711.20 and 709,391.96 is: 978,989.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,361.66 : 1,769,711.20 = 709,391.96 : x
  2. Step 2: Convert to fraction form
    1,282,361.66/1,769,711.20 = 709,391.96/x
  3. Step 3: Cross multiply
    1,282,361.66x = 1,769,711.20 × 709,391.96
  4. Step 4: Simplify right side
    1,282,361.66x = 1,255,418,896,801.95
  5. Step 5: Solve for x
    x = 1,255,418,896,801.95/1,282,361.66
  6. Step 6: Final answer
    x = 978,989.73

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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.