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Finding the Fourth Proportional to 404,254.99, 557,923.44 and 336,154.78

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Solution

The fourth proportional to 404,254.99, 557,923.44 and 336,154.78 is: 463,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,254.99 : 557,923.44 = 336,154.78 : x
  2. Step 2: Convert to fraction form
    404,254.99/557,923.44 = 336,154.78/x
  3. Step 3: Cross multiply
    404,254.99x = 557,923.44 × 336,154.78
  4. Step 4: Simplify right side
    404,254.99x = 187,548,631,230.04
  5. Step 5: Solve for x
    x = 187,548,631,230.04/404,254.99
  6. Step 6: Final answer
    x = 463,936.47

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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.