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Finding the Fourth Proportional to 404,329.30, 605,619.15 and 262,611.70

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Solution

The fourth proportional to 404,329.30, 605,619.15 and 262,611.70 is: 393,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,329.30 : 605,619.15 = 262,611.70 : x
  2. Step 2: Convert to fraction form
    404,329.30/605,619.15 = 262,611.70/x
  3. Step 3: Cross multiply
    404,329.30x = 605,619.15 × 262,611.70
  4. Step 4: Simplify right side
    404,329.30x = 159,042,674,534.06
  5. Step 5: Solve for x
    x = 159,042,674,534.06/404,329.30
  6. Step 6: Final answer
    x = 393,349.37

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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.