Home / 819,083.85-1,229,179.36-286,609.49

Finding the Fourth Proportional to 819,083.85, 1,229,179.36 and 286,609.49

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Solution

The fourth proportional to 819,083.85, 1,229,179.36 and 286,609.49 is: 430,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,083.85 : 1,229,179.36 = 286,609.49 : x
  2. Step 2: Convert to fraction form
    819,083.85/1,229,179.36 = 286,609.49/x
  3. Step 3: Cross multiply
    819,083.85x = 1,229,179.36 × 286,609.49
  4. Step 4: Simplify right side
    819,083.85x = 352,294,471,844.55
  5. Step 5: Solve for x
    x = 352,294,471,844.55/819,083.85
  6. Step 6: Final answer
    x = 430,107.95

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Double scale
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1.5x scale

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.