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Finding the Fourth Proportional to 454,043.72, 626,792.64 and 263,019.80

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Solution

The fourth proportional to 454,043.72, 626,792.64 and 263,019.80 is: 363,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,043.72 : 626,792.64 = 263,019.80 : x
  2. Step 2: Convert to fraction form
    454,043.72/626,792.64 = 263,019.80/x
  3. Step 3: Cross multiply
    454,043.72x = 626,792.64 × 263,019.80
  4. Step 4: Simplify right side
    454,043.72x = 164,858,874,814.27
  5. Step 5: Solve for x
    x = 164,858,874,814.27/454,043.72
  6. Step 6: Final answer
    x = 363,090.31

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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.