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Finding the Fourth Proportional to 404,291.40, 606,936.30 and 254,531.40

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Solution

The fourth proportional to 404,291.40, 606,936.30 and 254,531.40 is: 382,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,291.40 : 606,936.30 = 254,531.40 : x
  2. Step 2: Convert to fraction form
    404,291.40/606,936.30 = 254,531.40/x
  3. Step 3: Cross multiply
    404,291.40x = 606,936.30 × 254,531.40
  4. Step 4: Simplify right side
    404,291.40x = 154,484,346,149.82
  5. Step 5: Solve for x
    x = 154,484,346,149.82/404,291.40
  6. Step 6: Final answer
    x = 382,111.38

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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.