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Finding the Fourth Proportional to 348,902.10, 522,057.15 and 255,590.10

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Solution

The fourth proportional to 348,902.10, 522,057.15 and 255,590.10 is: 382,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,902.10 : 522,057.15 = 255,590.10 : x
  2. Step 2: Convert to fraction form
    348,902.10/522,057.15 = 255,590.10/x
  3. Step 3: Cross multiply
    348,902.10x = 522,057.15 × 255,590.10
  4. Step 4: Simplify right side
    348,902.10x = 133,432,639,174.22
  5. Step 5: Solve for x
    x = 133,432,639,174.22/348,902.10
  6. Step 6: Final answer
    x = 382,435.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.