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Finding the Fourth Proportional to 889,404, 1,227,368.73 and 481,495.06

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Solution

The fourth proportional to 889,404, 1,227,368.73 and 481,495.06 is: 664,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,404 : 1,227,368.73 = 481,495.06 : x
  2. Step 2: Convert to fraction form
    889,404/1,227,368.73 = 481,495.06/x
  3. Step 3: Cross multiply
    889,404x = 1,227,368.73 × 481,495.06
  4. Step 4: Simplify right side
    889,404x = 590,971,980,293.47
  5. Step 5: Solve for x
    x = 590,971,980,293.47/889,404
  6. Step 6: Final answer
    x = 664,458.42

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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.