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Finding the Fourth Proportional to 638,393.65, 957,553.55 and 233,858.85

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Solution

The fourth proportional to 638,393.65, 957,553.55 and 233,858.85 is: 350,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,393.65 : 957,553.55 = 233,858.85 : x
  2. Step 2: Convert to fraction form
    638,393.65/957,553.55 = 233,858.85/x
  3. Step 3: Cross multiply
    638,393.65x = 957,553.55 × 233,858.85
  4. Step 4: Simplify right side
    638,393.65x = 223,932,372,016.42
  5. Step 5: Solve for x
    x = 223,932,372,016.42/638,393.65
  6. Step 6: Final answer
    x = 350,774.75

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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.