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Finding the Fourth Proportional to 404,361.88, 557,907.42 and 261,127.96

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Solution

The fourth proportional to 404,361.88, 557,907.42 and 261,127.96 is: 360,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,361.88 : 557,907.42 = 261,127.96 : x
  2. Step 2: Convert to fraction form
    404,361.88/557,907.42 = 261,127.96/x
  3. Step 3: Cross multiply
    404,361.88x = 557,907.42 × 261,127.96
  4. Step 4: Simplify right side
    404,361.88x = 145,685,226,453.46
  5. Step 5: Solve for x
    x = 145,685,226,453.46/404,361.88
  6. Step 6: Final answer
    x = 360,284.27

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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.