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Finding the Fourth Proportional to 404,310.84, 557,939.34 and 223,018.92

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Solution

The fourth proportional to 404,310.84, 557,939.34 and 223,018.92 is: 307,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,310.84 : 557,939.34 = 223,018.92 : x
  2. Step 2: Convert to fraction form
    404,310.84/557,939.34 = 223,018.92/x
  3. Step 3: Cross multiply
    404,310.84x = 557,939.34 × 223,018.92
  4. Step 4: Simplify right side
    404,310.84x = 124,431,029,032.31
  5. Step 5: Solve for x
    x = 124,431,029,032.31/404,310.84
  6. Step 6: Final answer
    x = 307,760.80

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1.5x scale

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.