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Finding the Fourth Proportional to 483,019.56, 666,335.40 and 339,858.54

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Solution

The fourth proportional to 483,019.56, 666,335.40 and 339,858.54 is: 468,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,019.56 : 666,335.40 = 339,858.54 : x
  2. Step 2: Convert to fraction form
    483,019.56/666,335.40 = 339,858.54/x
  3. Step 3: Cross multiply
    483,019.56x = 666,335.40 × 339,858.54
  4. Step 4: Simplify right side
    483,019.56x = 226,459,776,194.32
  5. Step 5: Solve for x
    x = 226,459,776,194.32/483,019.56
  6. Step 6: Final answer
    x = 468,841.83

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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.