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Finding the Fourth Proportional to 404,256.99, 557,926.20 and 336,156.78

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Solution

The fourth proportional to 404,256.99, 557,926.20 and 336,156.78 is: 463,939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,256.99 : 557,926.20 = 336,156.78 : x
  2. Step 2: Convert to fraction form
    404,256.99/557,926.20 = 336,156.78/x
  3. Step 3: Cross multiply
    404,256.99x = 557,926.20 × 336,156.78
  4. Step 4: Simplify right side
    404,256.99x = 187,550,674,869.64
  5. Step 5: Solve for x
    x = 187,550,674,869.64/404,256.99
  6. Step 6: Final answer
    x = 463,939.23

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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.