Home / 840,691.73-1,160,180.19-478,167.77

Finding the Fourth Proportional to 840,691.73, 1,160,180.19 and 478,167.77

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Solution

The fourth proportional to 840,691.73, 1,160,180.19 and 478,167.77 is: 659,886.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,691.73 : 1,160,180.19 = 478,167.77 : x
  2. Step 2: Convert to fraction form
    840,691.73/1,160,180.19 = 478,167.77/x
  3. Step 3: Cross multiply
    840,691.73x = 1,160,180.19 × 478,167.77
  4. Step 4: Simplify right side
    840,691.73x = 554,760,777,150.93
  5. Step 5: Solve for x
    x = 554,760,777,150.93/840,691.73
  6. Step 6: Final answer
    x = 659,886.09

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Double scale
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1.5x scale

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.