Home / 1,065,571.40-1,470,517.40-636,100.80

Finding the Fourth Proportional to 1,065,571.40, 1,470,517.40 and 636,100.80

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Solution

The fourth proportional to 1,065,571.40, 1,470,517.40 and 636,100.80 is: 877,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,571.40 : 1,470,517.40 = 636,100.80 : x
  2. Step 2: Convert to fraction form
    1,065,571.40/1,470,517.40 = 636,100.80/x
  3. Step 3: Cross multiply
    1,065,571.40x = 1,470,517.40 × 636,100.80
  4. Step 4: Simplify right side
    1,065,571.40x = 935,397,294,553.92
  5. Step 5: Solve for x
    x = 935,397,294,553.92/1,065,571.40
  6. Step 6: Final answer
    x = 877,836.34

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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.