Home / 1,287,535.74-1,776,716.55-714,576.30

Finding the Fourth Proportional to 1,287,535.74, 1,776,716.55 and 714,576.30

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Solution

The fourth proportional to 1,287,535.74, 1,776,716.55 and 714,576.30 is: 986,069.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,535.74 : 1,776,716.55 = 714,576.30 : x
  2. Step 2: Convert to fraction form
    1,287,535.74/1,776,716.55 = 714,576.30/x
  3. Step 3: Cross multiply
    1,287,535.74x = 1,776,716.55 × 714,576.30
  4. Step 4: Simplify right side
    1,287,535.74x = 1,269,599,538,447.77
  5. Step 5: Solve for x
    x = 1,269,599,538,447.77/1,287,535.74
  6. Step 6: Final answer
    x = 986,069.36

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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.