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Finding the Fourth Proportional to 404,334.51, 557,809.52 and 296,717.55

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Solution

The fourth proportional to 404,334.51, 557,809.52 and 296,717.55 is: 409,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,334.51 : 557,809.52 = 296,717.55 : x
  2. Step 2: Convert to fraction form
    404,334.51/557,809.52 = 296,717.55/x
  3. Step 3: Cross multiply
    404,334.51x = 557,809.52 × 296,717.55
  4. Step 4: Simplify right side
    404,334.51x = 165,511,872,657.49
  5. Step 5: Solve for x
    x = 165,511,872,657.49/404,334.51
  6. Step 6: Final answer
    x = 409,343.92

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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.