Home / 1,262,689.45-1,742,511.38-681,912.53

Finding the Fourth Proportional to 1,262,689.45, 1,742,511.38 and 681,912.53

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Solution

The fourth proportional to 1,262,689.45, 1,742,511.38 and 681,912.53 is: 941,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,689.45 : 1,742,511.38 = 681,912.53 : x
  2. Step 2: Convert to fraction form
    1,262,689.45/1,742,511.38 = 681,912.53/x
  3. Step 3: Cross multiply
    1,262,689.45x = 1,742,511.38 × 681,912.53
  4. Step 4: Simplify right side
    1,262,689.45x = 1,188,240,334,892.45
  5. Step 5: Solve for x
    x = 1,188,240,334,892.45/1,262,689.45
  6. Step 6: Final answer
    x = 941,039.25

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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.