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Finding the Fourth Proportional to 290,722.20, 436,083.30 and 241,570.20

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Solution

The fourth proportional to 290,722.20, 436,083.30 and 241,570.20 is: 362,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,722.20 : 436,083.30 = 241,570.20 : x
  2. Step 2: Convert to fraction form
    290,722.20/436,083.30 = 241,570.20/x
  3. Step 3: Cross multiply
    290,722.20x = 436,083.30 × 241,570.20
  4. Step 4: Simplify right side
    290,722.20x = 105,344,729,997.66
  5. Step 5: Solve for x
    x = 105,344,729,997.66/290,722.20
  6. Step 6: Final answer
    x = 362,355.30

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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.