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Finding the Fourth Proportional to 669,052.60, 923,293.09 and 363,128.96

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Solution

The fourth proportional to 669,052.60, 923,293.09 and 363,128.96 is: 501,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,052.60 : 923,293.09 = 363,128.96 : x
  2. Step 2: Convert to fraction form
    669,052.60/923,293.09 = 363,128.96/x
  3. Step 3: Cross multiply
    669,052.60x = 923,293.09 × 363,128.96
  4. Step 4: Simplify right side
    669,052.60x = 335,274,459,546.89
  5. Step 5: Solve for x
    x = 335,274,459,546.89/669,052.60
  6. Step 6: Final answer
    x = 501,118.24

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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.