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Finding the Fourth Proportional to 424,063.89, 585,241.61 and 242,832.87

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Solution

The fourth proportional to 424,063.89, 585,241.61 and 242,832.87 is: 335,128.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,063.89 : 585,241.61 = 242,832.87 : x
  2. Step 2: Convert to fraction form
    424,063.89/585,241.61 = 242,832.87/x
  3. Step 3: Cross multiply
    424,063.89x = 585,241.61 × 242,832.87
  4. Step 4: Simplify right side
    424,063.89x = 142,115,898,585.56
  5. Step 5: Solve for x
    x = 142,115,898,585.56/424,063.89
  6. Step 6: Final answer
    x = 335,128.51

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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.