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Finding the Fourth Proportional to 424,290.90, 585,375.74 and 263,087.94

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Solution

The fourth proportional to 424,290.90, 585,375.74 and 263,087.94 is: 362,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,290.90 : 585,375.74 = 263,087.94 : x
  2. Step 2: Convert to fraction form
    424,290.90/585,375.74 = 263,087.94/x
  3. Step 3: Cross multiply
    424,290.90x = 585,375.74 × 263,087.94
  4. Step 4: Simplify right side
    424,290.90x = 154,005,297,562.58
  5. Step 5: Solve for x
    x = 154,005,297,562.58/424,290.90
  6. Step 6: Final answer
    x = 362,971.01

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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.