Home / 711,055.50-981,016.20-404,914.83

Finding the Fourth Proportional to 711,055.50, 981,016.20 and 404,914.83

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Solution

The fourth proportional to 711,055.50, 981,016.20 and 404,914.83 is: 558,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,055.50 : 981,016.20 = 404,914.83 : x
  2. Step 2: Convert to fraction form
    711,055.50/981,016.20 = 404,914.83/x
  3. Step 3: Cross multiply
    711,055.50x = 981,016.20 × 404,914.83
  4. Step 4: Simplify right side
    711,055.50x = 397,228,007,850.25
  5. Step 5: Solve for x
    x = 397,228,007,850.25/711,055.50
  6. Step 6: Final answer
    x = 558,645.57

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.