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Finding the Fourth Proportional to 669,435.57, 923,832.20 and 363,512.54

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Solution

The fourth proportional to 669,435.57, 923,832.20 and 363,512.54 is: 501,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,435.57 : 923,832.20 = 363,512.54 : x
  2. Step 2: Convert to fraction form
    669,435.57/923,832.20 = 363,512.54/x
  3. Step 3: Cross multiply
    669,435.57x = 923,832.20 × 363,512.54
  4. Step 4: Simplify right side
    669,435.57x = 335,824,592,774.15
  5. Step 5: Solve for x
    x = 335,824,592,774.15/669,435.57
  6. Step 6: Final answer
    x = 501,653.34

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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.