Home / 1,171,477.28-1,755,209.96-639,371.68

Finding the Fourth Proportional to 1,171,477.28, 1,755,209.96 and 639,371.68

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Solution

The fourth proportional to 1,171,477.28, 1,755,209.96 and 639,371.68 is: 957,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,477.28 : 1,755,209.96 = 639,371.68 : x
  2. Step 2: Convert to fraction form
    1,171,477.28/1,755,209.96 = 639,371.68/x
  3. Step 3: Cross multiply
    1,171,477.28x = 1,755,209.96 × 639,371.68
  4. Step 4: Simplify right side
    1,171,477.28x = 1,122,231,535,690.69
  5. Step 5: Solve for x
    x = 1,122,231,535,690.69/1,171,477.28
  6. Step 6: Final answer
    x = 957,962.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.