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Finding the Fourth Proportional to 611,040.84, 916,507.41 and 273,991.03

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Solution

The fourth proportional to 611,040.84, 916,507.41 and 273,991.03 is: 410,962.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,040.84 : 916,507.41 = 273,991.03 : x
  2. Step 2: Convert to fraction form
    611,040.84/916,507.41 = 273,991.03/x
  3. Step 3: Cross multiply
    611,040.84x = 916,507.41 × 273,991.03
  4. Step 4: Simplify right side
    611,040.84x = 251,114,806,977.26
  5. Step 5: Solve for x
    x = 251,114,806,977.26/611,040.84
  6. Step 6: Final answer
    x = 410,962.39

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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.