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Finding the Fourth Proportional to 669,503.89, 923,912.52 and 363,578.13

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Solution

The fourth proportional to 669,503.89, 923,912.52 and 363,578.13 is: 501,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,503.89 : 923,912.52 = 363,578.13 : x
  2. Step 2: Convert to fraction form
    669,503.89/923,912.52 = 363,578.13/x
  3. Step 3: Cross multiply
    669,503.89x = 923,912.52 × 363,578.13
  4. Step 4: Simplify right side
    669,503.89x = 335,914,386,305.19
  5. Step 5: Solve for x
    x = 335,914,386,305.19/669,503.89
  6. Step 6: Final answer
    x = 501,736.27

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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.