Home / 1,085,538.30-1,627,684.49-411,189.51

Finding the Fourth Proportional to 1,085,538.30, 1,627,684.49 and 411,189.51

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Solution

The fourth proportional to 1,085,538.30, 1,627,684.49 and 411,189.51 is: 616,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,538.30 : 1,627,684.49 = 411,189.51 : x
  2. Step 2: Convert to fraction form
    1,085,538.30/1,627,684.49 = 411,189.51/x
  3. Step 3: Cross multiply
    1,085,538.30x = 1,627,684.49 × 411,189.51
  4. Step 4: Simplify right side
    1,085,538.30x = 669,286,785,821.75
  5. Step 5: Solve for x
    x = 669,286,785,821.75/1,085,538.30
  6. Step 6: Final answer
    x = 616,548.29

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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.