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Finding the Fourth Proportional to 365,819.70, 551,471.43 and 341,434.65

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Solution

The fourth proportional to 365,819.70, 551,471.43 and 341,434.65 is: 514,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,819.70 : 551,471.43 = 341,434.65 : x
  2. Step 2: Convert to fraction form
    365,819.70/551,471.43 = 341,434.65/x
  3. Step 3: Cross multiply
    365,819.70x = 551,471.43 × 341,434.65
  4. Step 4: Simplify right side
    365,819.70x = 188,291,454,687.05
  5. Step 5: Solve for x
    x = 188,291,454,687.05/365,819.70
  6. Step 6: Final answer
    x = 514,711.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.