Home / 1,028,299.88-1,418,289.01-665,443.78

Finding the Fourth Proportional to 1,028,299.88, 1,418,289.01 and 665,443.78

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Solution

The fourth proportional to 1,028,299.88, 1,418,289.01 and 665,443.78 is: 917,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,299.88 : 1,418,289.01 = 665,443.78 : x
  2. Step 2: Convert to fraction form
    1,028,299.88/1,418,289.01 = 665,443.78/x
  3. Step 3: Cross multiply
    1,028,299.88x = 1,418,289.01 × 665,443.78
  4. Step 4: Simplify right side
    1,028,299.88x = 943,791,594,737.53
  5. Step 5: Solve for x
    x = 943,791,594,737.53/1,028,299.88
  6. Step 6: Final answer
    x = 917,817.47

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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.