Home / 1,278,525.66-1,764,407.75-697,780.50

Finding the Fourth Proportional to 1,278,525.66, 1,764,407.75 and 697,780.50

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Solution

The fourth proportional to 1,278,525.66, 1,764,407.75 and 697,780.50 is: 962,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,525.66 : 1,764,407.75 = 697,780.50 : x
  2. Step 2: Convert to fraction form
    1,278,525.66/1,764,407.75 = 697,780.50/x
  3. Step 3: Cross multiply
    1,278,525.66x = 1,764,407.75 × 697,780.50
  4. Step 4: Simplify right side
    1,278,525.66x = 1,231,169,321,998.88
  5. Step 5: Solve for x
    x = 1,231,169,321,998.88/1,278,525.66
  6. Step 6: Final answer
    x = 962,960.20

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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.