Home / 669,684.92-923,904.71-379,229.79

Finding the Fourth Proportional to 669,684.92, 923,904.71 and 379,229.79

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Solution

The fourth proportional to 669,684.92, 923,904.71 and 379,229.79 is: 523,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,684.92 : 923,904.71 = 379,229.79 : x
  2. Step 2: Convert to fraction form
    669,684.92/923,904.71 = 379,229.79/x
  3. Step 3: Cross multiply
    669,684.92x = 923,904.71 × 379,229.79
  4. Step 4: Simplify right side
    669,684.92x = 350,372,189,153.31
  5. Step 5: Solve for x
    x = 350,372,189,153.31/669,684.92
  6. Step 6: Final answer
    x = 523,189.61

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Half scale
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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.