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Finding the Fourth Proportional to 366,300.66, 504,998.64 and 313,156.56

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Solution

The fourth proportional to 366,300.66, 504,998.64 and 313,156.56 is: 431,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,300.66 : 504,998.64 = 313,156.56 : x
  2. Step 2: Convert to fraction form
    366,300.66/504,998.64 = 313,156.56/x
  3. Step 3: Cross multiply
    366,300.66x = 504,998.64 × 313,156.56
  4. Step 4: Simplify right side
    366,300.66x = 158,143,636,907.08
  5. Step 5: Solve for x
    x = 158,143,636,907.08/366,300.66
  6. Step 6: Final answer
    x = 431,731.78

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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.