Home / 728,143.39-1,092,214.14-195,664.43

Finding the Fourth Proportional to 728,143.39, 1,092,214.14 and 195,664.43

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Solution

The fourth proportional to 728,143.39, 1,092,214.14 and 195,664.43 is: 293,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,143.39 : 1,092,214.14 = 195,664.43 : x
  2. Step 2: Convert to fraction form
    728,143.39/1,092,214.14 = 195,664.43/x
  3. Step 3: Cross multiply
    728,143.39x = 1,092,214.14 × 195,664.43
  4. Step 4: Simplify right side
    728,143.39x = 213,707,457,141.04
  5. Step 5: Solve for x
    x = 213,707,457,141.04/728,143.39
  6. Step 6: Final answer
    x = 293,496.39

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Double scale
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Similar ratio
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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.