Home / 719,286.96-992,545.33-396,976.25

Finding the Fourth Proportional to 719,286.96, 992,545.33 and 396,976.25

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Solution

The fourth proportional to 719,286.96, 992,545.33 and 396,976.25 is: 547,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,286.96 : 992,545.33 = 396,976.25 : x
  2. Step 2: Convert to fraction form
    719,286.96/992,545.33 = 396,976.25/x
  3. Step 3: Cross multiply
    719,286.96x = 992,545.33 × 396,976.25
  4. Step 4: Simplify right side
    719,286.96x = 394,016,919,088.13
  5. Step 5: Solve for x
    x = 394,016,919,088.13/719,286.96
  6. Step 6: Final answer
    x = 547,788.22

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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.